Question: What is one way dogs learn to behave?\nOptions:\n- (A) exercise\n- (B) mating\n- (C) ligt\n- (D) playing\n- (E) parties\n- (F) slumber\n- (G) firm hugs\n- (H) Movement

Answer: (D)

Playing is one way mammals and other animals learn how to behave. Cats are Mammals that Shed Dogs are Mammals that Wag their tails. Playing is one way dogs learn to behave.


Question: Bacteria causes what to be harmed?\nOptions:\n- (A) plants\n- (B) electronics\n- (C) fossils\n- (D) humans\n- (E) animals\n- (F) viruses\n- (G) food\n- (H) the skin

Answer: (A)

Plants respond to daily and seasonal cycles and to disease. Plant diseases cause by bacteria. Plants respond to seasonal and daily cycles and to bacteria.


Question: What do plants respond to?\nOptions:\n- (A) Chemical energy\n- (B) Vibrations\n- (C) heat energy\n- (D) Sulfur dioxide\n- (E) Temperature\n- (F) sun's heat\n- (G) Clouds\n- (H) Wood

Answer: (E)

Plants respond to daily and seasonal cycles and to disease. Temperature follows a seasonal cycle. Plants respond to temperature.


Question: What responds to daily and seasonal cycles and to disease?\nOptions:\n- (A) resistance\n- (B) Sundays\n- (C) vegetation\n- (D) Summer season\n- (E) swamp vegetation\n- (F) Mondays\n- (G) alpacas\n- (H) Green beans

Answer: (H)

Plants respond to daily and seasonal cycles and to disease. Green bean plantings continue to be planted. Green beans respond to daily and seasonal cycles and to disease.


Question: What do plants respond to?\nOptions:\n- (A) Energy.\n- (B) heat produced\n- (C) Chemical energy\n- (D) sun's heat\n- (E) the environment\n- (F) heat energy\n- (G) Sulfur dioxide\n- (H) temperature

Answer: (H)

Plants respond to daily and seasonal cycles and to disease. Temperature follows a seasonal cycle. Plants respond to temperature.


Question: What requires a microscope in order to be seen?\nOptions:\n- (A) fungi\n- (B) cells\n- (C) mildew\n- (D) gasoline\n- (E) fungus\n- (F) matter\n- (G) telescopes\n- (H) sunlight

Answer: (B)

Cells vary in size as well as shape, but all cells are very small. An embryo is so small that it requires a microscope in order to be seen. A cell requires a microscope in order to be seen.


Question: Cells pretty much al share this one characteristic:\nOptions:\n- (A) sensory neurons\n- (B) voltage\n- (C) aerobic capacity\n- (D) microscopic\n- (E) eukaryotic\n- (F) bacteria\n- (G) prokaryotic\n- (H) layers of fat

Answer: (D)

Cells vary in size as well as shape, but all cells are very small. All cells are microscopic in size. Cells can vary in shape, but they are all microscopic.


Question: Which item found in the human body is smaller? \nOptions:\n- (A) the eyes\n- (B) Epidermis\n- (C) all matter\n- (D) Fingernail.\n- (E) Inches\n- (F) Baby tooth.\n- (G) Small eyelash.\n- (H) Neuron.

Answer: (H)

Cells vary in size as well as shape, but all cells are very small. Neurons are cells that are similar to other cells. Neurons are very small in size.


Question: What size are cells?\nOptions:\n- (A) either huge or tiny\n- (B) non existent\n- (C) dense\n- (D) large\n- (E) white\n- (F) tiny\n- (G) dead\n- (H) albino

Answer: (F)

Cells vary in size as well as shape, but all cells are very small. Atoms are tiny particles that are too small to see. Cells vary in size as well as shape, but all cells are very tiny.


Question: What may vary in size as well as shape, but all are very small?\nOptions:\n- (A) keeping food fresh for long periods of time\n- (B) disease-causing microorganisms\n- (C) A solid geometric shape\n- (D) Unequal radiation absorption\n- (E) Small countries.\n- (F) Shapewear.\n- (G) A water well.\n- (H) Basic units of the plant body.

Answer: (H)

Cells vary in size as well as shape, but all cells are very small. Basic unit of the plant body is the cell. Basic units of the plant body vary in size as well as shape, but all are very small.


Question: How are atolls built?\nOptions:\n- (A) important habitats\n- (B) By coral exoskeletons\n- (C) by fish\n- (D) with machines\n- (E) by a type of eel\n- (F) It used to be covered by water\n- (G) The area was once underwater\n- (H) reusing materials

Answer: (B)

Many corals secrete an exoskeleton that builds up to become a coral reef. An atoll is the third type of reef. Atolls are built by corals secreting an exoskeleton.


Question: What is secreted by organisms like frogspawn to become a reef?\nOptions:\n- (A) exocrine glands\n- (B) food and shelter\n- (C) exoskeleton\n- (D) bones\n- (E) Energy\n- (F) Chemical energy\n- (G) plasma\n- (H) Energy.

Answer: (C)

Many corals secrete an exoskeleton that builds up to become a coral reef. Good examples are Bubble coral, Elegance coral, Frogspawn and other Euphyllia corals. Organisms like frogspawns secrete an exoskeleton that builds up to become a reef.


Question: Many corals secrete what to form a coral reef?\nOptions:\n- (A) Chlorophyll\n- (B) salt and water.\n- (C) The area was once underwater\n- (D) Chemical energy\n- (E) aqueous solution\n- (F) Organic compounds\n- (G) gastropod shells\n- (H) hard outer covering

Answer: (H)

Many corals secrete an exoskeleton that builds up to become a coral reef. An insect has a hard outer covering called an exoskeleton. Many corals secrete a hard outer covering that builds up to become a coral reef.


Question: What is the primary item inside a virus?\nOptions:\n- (A) Chemical energy\n- (B) particles\n- (C) genetic material\n- (D) cytoplasm\n- (E) electromagnetic energy\n- (F) bioaerosols\n- (G) food and shelter\n- (H) bacteria

Answer: (C)

Viruses contain DNA but not much else. DNA DNA DNA is a person's genetic fingerprint. Viruses contain genetic material and not much else.


Question: What contains an abundance of deoxyribonucleic acid and not much else?\nOptions:\n- (A) Conifers\n- (B) PDAs\n- (C) pollen\n- (D) anemia\n- (E) bacteria\n- (F) proteins\n- (G) diseases\n- (H) viruses

Answer: (H)

Viruses contain DNA but not much else. DNA is short for Deoxyribonucleic Acid. Viruses contain deoxyribonucleic acid but not much else.


Question: What contains deoxyribonucleic acid but not much else.\nOptions:\n- (A) minerals\n- (B) bacteria\n- (C) loose soil\n- (D) pollen\n- (E) viruses\n- (F) anemia\n- (G) PDAs\n- (H) vertebrates

Answer: (E)

Viruses contain DNA but not much else. DNA is an abbreviation for deoxyribonucleic acid. Viruses contain deoxyribonucleic acid but not much else.


Question: What is a main component of a virus?\nOptions:\n- (A) Something that causes allergies\n- (B) Leptospirosis\n- (C) Localized damage\n- (D) heat produced\n- (E) deoxyribonucleic acid\n- (F) Chemical energy\n- (G) direct damage to the lungs\n- (H) It helps them survive

Answer: (E)

Viruses contain DNA but not much else. DNA DNA is deoxyribonucleic acid. Viruses contain deosyribonucleic acid, but not much else.


Question: What does pollen consist of tiny grains of?\nOptions:\n- (A) it helps plants in growing\n- (B) the female sexual organs\n- (C) Something with exactly eight protons\n- (D) seeds\n- (E) Microscopic organisms\n- (F) the male sex cells of plants\n- (G) bees\n- (H) sub-units of species

Answer: (F)

Pollen consists of tiny grains that are the male gametes of plants. Animals that reproduce sexually produce sex cells, or gametes. Pollen consists of tiny grains that are the male sex cells of plants.


Question: Pollen consists of tiny grains that are the _ of plants.\nOptions:\n- (A) Mitosis\n- (B) made\n- (C) small\n- (D) sperm\n- (E) seeds\n- (F) honey\n- (G) flowers\n- (H) edible

Answer: (D)

Pollen consists of tiny grains that are the male gametes of plants. Male gametes are called sperm. Pollen consists of tiny grains that are the sperm. of plants.


Question: What kind of plants produce pollen?\nOptions:\n- (A) white\n- (B) insects\n- (C) seeds\n- (D) haploid\n- (E) bees\n- (F) swea\n- (G) grass\n- (H) Conifers

Answer: (D)

Pollen consists of tiny grains that are the male gametes of plants. Haploid plants produce gametes. Pollen comes from haploid plants.


Question: What has a circulatory system with a two-chambered heart?\nOptions:\n- (A) sharks\n- (B) insects\n- (C) salmon\n- (D) animals\n- (E) barnacles\n- (F) mammals\n- (G) tortoises\n- (H) alpacas

Answer: (C)

Fish have a circulatory system with a two-chambered heart. Fish include bass and salmon. Salmon have a circulatory system with a two-chambered heart.


Question: What has circulatory system with a two-chambered heart?\nOptions:\n- (A) sharks\n- (B) trout\n- (C) pan\n- (D) toads\n- (E) Birds\n- (F) animals\n- (G) mammals\n- (H) Man

Answer: (B)

Fish have a circulatory system with a two-chambered heart. Fish species include salmon and trout. Salmon and trout have a circulatory system with a two-chambered heart.


Question: Which is the most likely cause of throat tumors?\nOptions:\n- (A) cigars\n- (B) Allergies\n- (C) viruses\n- (D) Pesticides\n- (E) rocks\n- (F) doctors\n- (G) the skin\n- (H) water

Answer: (C)

Some viruses can cause cancer. Lung cancer is a formation of tumors in the lung. Some viruses result in the formation of malignant tumors.


Question: Some viruses can what?\nOptions:\n- (A) fret\n- (B) harm\n- (C) damage\n- (D) grow\n- (E) expand\n- (F) discover\n- (G) visit\n- (H) kill

Answer: (H)

Some viruses can cause cancer. Skin cancer can kill. Some viruses can kill.


Question: What can hpv cause?\nOptions:\n- (A) a hazard\n- (B) harm\n- (C) cancer\n- (D) sweating\n- (E) heightened abilities\n- (F) anemia\n- (G) good health\n- (H) comfort

Answer: (C)

Some viruses can cause cancer. Human papillomavirus, or HPV, is the name of a group of viruses. HPV can cause cancer.


Question: What can have motility?\nOptions:\n- (A) Small things with a microscope\n- (B) gastropod shells\n- (C) members of their own species\n- (D) one celled organisms\n- (E) Something to move\n- (F) mitochondria\n- (G) rocks\n- (H) intestines

Answer: (D)

Most protists have motility. Protists are one celled organisms. One celled organisms can have motility.


Question: Most types of what have motility?\nOptions:\n- (A) gastropod shells\n- (B) members of their own species\n- (C) single-celled organisms\n- (D) Something to move\n- (E) remains of prehistoric life\n- (F) microbial fuel cells\n- (G) microorganisms\n- (H) share properties

Answer: (C)

Most protists have motility. Protists Protists are single-celled organisms. Most single-celled organisms have motility.


Question: What is one thing most single-celled organisms have in common?\nOptions:\n- (A) Energy\n- (B) glucose\n- (C) bacteria\n- (D) motility\n- (E) Energy.\n- (F) heat energy\n- (G) resistance\n- (H) warmth

Answer: (D)

Most protists have motility. Protists Protists are single-celled organisms. Most single-celled organisms are motile.


Question: What do simple eukaryotes have?\nOptions:\n- (A) Energy\n- (B) fur and fat\n- (C) Motility\n- (D) bioaerosols\n- (E) four limbs\n- (F) pollen\n- (G) glucose\n- (H) Energy.

Answer: (C)

Most protists have motility. Protists are the simplest of eukaryotes. The simplest eukaryotes have motility.


Question: Which can move?\nOptions:\n- (A) Raft\n- (B) light energy\n- (C) vehicles\n- (D) insects\n- (E) protists\n- (F) bicycle\n- (G) animals\n- (H) an object

Answer: (E)

Most protists have motility. All animals are motile, moving about at some point in their life cycle. Most protists are able to move.


Question: _ are an essential nutrient for animals.\nOptions:\n- (A) Energy\n- (B) Chemicals\n- (C) trees\n- (D) potatoes\n- (E) Acids\n- (F) allow growth\n- (G) store\n- (H) Proteins

Answer: (H)

All animals are heterotrophs. Proteins are an essential nutrient for heterotrophs . Proteins are an essential nutrient for animals.


Question: All animals are what?\nOptions:\n- (A) consumers\n- (B) all matter\n- (C) insects\n- (D) aquatic\n- (E) plants\n- (F) furry\n- (G) parasites\n- (H) infected

Answer: (A)

All animals are heterotrophs. All consumers are also called Heterotrophs. All animals are consumers.


Question: Where does dna reside?\nOptions:\n- (A) membrane\n- (B) cells\n- (C) embryos\n- (D) atom\n- (E) complex\n- (F) nucleotide\n- (G) ligt\n- (H) retina

Answer: (B)

DNA is found in chromosomes. Genes live on chromosomes, chromosomes live in cells. DNA is found in cells.


Question: What is found in chromosomes?\nOptions:\n- (A) Chemical energy\n- (B) It helps them survive\n- (C) deoxyribonucleic acid\n- (D) toxic acids\n- (E) more abundant\n- (F) allow growth\n- (G) internucleic acid\n- (H) chromosomal filters

Answer: (C)

DNA is found in chromosomes. DNA DNA is deoxyribonucleic acid. Deoxyribonucleic acid is found in chromosomes.


Question: Dna is typically found in this state:\nOptions:\n- (A) protected\n- (B) spiky\n- (C) dense\n- (D) genetic\n- (E) alleles\n- (F) coiled\n- (G) circular\n- (H) electron

Answer: (F)

DNA is found in chromosomes. Chromosome Chromosome A chromosome is a grouping of coiled strands of DNA , containing many genes. DNA is found in coiled groups of genes.


Question: Dna is found where in a cell?\nOptions:\n- (A) mitochondria\n- (B) complex\n- (C) alveoli\n- (D) membrane\n- (E) plants\n- (F) infected\n- (G) cytoplasm\n- (H) nucleus

Answer: (H)

DNA is found in chromosomes. Chromosomes are located in the nucleus of a cell. DNA is found in the nucleus of a cell.


Question: What is an example of an entity that can live on in a completely inactive state?\nOptions:\n- (A) an object\n- (B) sloths\n- (C) hibernating bears\n- (D) Conifers\n- (E) chickenpox\n- (F) barnacles\n- (G) a fish\n- (H) mammals

Answer: (E)

Some viruses live in a dormant state inside the body. After an episode of chickenpox, the virus becomes dormant in the body. Chicken pox can live in an inactive state.


Question: What can stay hidden in a hibernating state inside the body?\nOptions:\n- (A) infections\n- (B) blood cells\n- (C) fungi\n- (D) insects\n- (E) viruses\n- (F) honeybees\n- (G) plasma\n- (H) barnacles

Answer: (E)

Some viruses live in a dormant state inside the body. When ferns are dormant it is as if they are hibernating. Some viruses live in a hibernating state inside the body.


Question: Some agents that infect cells live in what state inside the body?\nOptions:\n- (A) solid\n- (B) conscious\n- (C) expelled\n- (D) bacteria\n- (E) infected\n- (F) dormant\n- (G) cellular\n- (H) protected

Answer: (F)

Some viruses live in a dormant state inside the body. Viruses Viruses are agents that infect cells, yet lack many of the characteristics of life. Some agents that infect cells live in a dormant state inside the body.


Question: Some viruses do not affect the host and live in what kind of state in the body?\nOptions:\n- (A) inactive\n- (B) devastating\n- (C) recovery\n- (D) negative\n- (E) hyperactive\n- (F) sleep\n- (G) excited\n- (H) cold

Answer: (A)

Some viruses live in a dormant state inside the body. When inactive or dormant, Dendrobiums require little or no fertilizer. Some viruses live in an inactive state inside the body.


Question: Which type of system do most animals without backbones have?\nOptions:\n- (A) sensory neurons\n- (B) Veins and arteries.\n- (C) Nervous system\n- (D) Stereo system\n- (E) Root system\n- (F) to move people\n- (G) Skeletal system\n- (H) insects

Answer: (C)

Most invertebrates have a nervous system. Invertebrates are animals without a backbone. Most animals without backbones have a nervous system.


Question: What has a nervous system?\nOptions:\n- (A) animals\n- (B) tortoises\n- (C) crocodiles\n- (D) sponges\n- (E) elephants\n- (F) placozoans\n- (G) mesozoans\n- (H) insects

Answer: (H)

Most invertebrates have a nervous system. Insects are the most common invertebrates. Insects have a nervous system.


Question: What has a nervous system?\nOptions:\n- (A) Nerve tonic\n- (B) Jellyfish\n- (C) Air\n- (D) fur seals\n- (E) Cardiovascular system\n- (F) animals\n- (G) chickens\n- (H) elephants

Answer: (B)

Most invertebrates have a nervous system. Jellyfish and insects are invertebrates. Jellyfish have a nervous system.


Question: What do most people need at least a little of every few days to survive?\nOptions:\n- (A) NACL\n- (B) UV\n- (C) mL\n- (D) oxygen\n- (E) corn\n- (F) H20\n- (G) rest\n- (H) Hydrogen

Answer: (F)

Most people can survive only a few days without water. Water is everywhere H20. Most people can only survive a few days without H20.


Question: Most people can survive only a few days without what?\nOptions:\n- (A) carbon dioxide\n- (B) oxygen\n- (C) h2o\n- (D) H20\n- (E) NaCl\n- (F) CO2\n- (G) soda\n- (H) urea

Answer: (D)

Most people can survive only a few days without water. Water is everywhere H20. Most people can survive only a few days without H20.


Question: Most people can survive only a few days without what?\nOptions:\n- (A) h2o\n- (B) urea\n- (C) CO2\n- (D) beds\n- (E) houses\n- (F) air\n- (G) NaCl\n- (H) H20

Answer: (H)

Most people can survive only a few days without water. H20 Bottled water was generally consumed last year. Most people can survive only a few days without H20.


Question: What can most humans only survive a few days without?\nOptions:\n- (A) oxygen\n- (B) food\n- (C) edema\n- (D) sex\n- (E) sodium\n- (F) socialization\n- (G) water\n- (H) liquid

Answer: (G)

Most people can survive only a few days without water. All people belong to the human family. Most humans can only survive a few days without water.


Question: What comes from lifting heavy weights?\nOptions:\n- (A) sizing\n- (B) Dehydration\n- (C) kinetic energy\n- (D) contracting\n- (E) Energy\n- (F) forces\n- (G) destroying\n- (H) embellishing

Answer: (D)

Muscles can only contract. Muscle size comes from lifting heavy weights. Contracting comes from lifting heavy weights.


Question: The trcipes femoris is used to move what?\nOptions:\n- (A) heat\n- (B) Mass\n- (C) Weight\n- (D) feet\n- (E) matter\n- (F) people\n- (G) embryos\n- (H) bones

Answer: (H)

Muscles can only contract. When contracted the triceps femoris pulls the thigh forward and extends the shank. Muscles like the triceps femoris are used to move bones.


Question: What enables bones to perform movement?\nOptions:\n- (A) contraction\n- (B) Energy\n- (C) sensory neurons\n- (D) looseness\n- (E) Chemical energy\n- (F) Vibrates\n- (G) fur and fat\n- (H) layers of fat

Answer: (A)

Muscles can only contract. Bones work with muscles to perform movement. Contraction enables bones to perform movement.


Question: What is the euphrates larger than?\nOptions:\n- (A) ocean\n- (B) planet\n- (C) trees\n- (D) sea\n- (E) Inches\n- (F) Sediment\n- (G) stream\n- (H) Length

Answer: (G)

Rivers are usually larger than streams. And the fourth river is the Great River, the river Euphrates. The Euphrates is larger than a stream.


Question: What are single celled organisms that do not have a nucleus?\nOptions:\n- (A) Most plants\n- (B) nucleus\n- (C) ferns\n- (D) fossil fuels\n- (E) bushes\n- (F) Eukaryotes\n- (G) leech\n- (H) bacteria

Answer: (H)

Prokaryotes are single-celled organisms that lack a nucleus. Prokaryotes are usually microscopic and bacteria is an example of a prokaryote. Bacteria are single celled organisms that do not have a nucleus.


Question: What are single-celled organisms that lack a nucleus?\nOptions:\n- (A) ferns\n- (B) barnacles\n- (C) Most plants\n- (D) cacti\n- (E) Leeuwenhoek\n- (F) orchids\n- (G) bacteria\n- (H) PDAs

Answer: (G)

Prokaryotes are single-celled organisms that lack a nucleus. Bacteria are said to be prokaryotes . Bacteria are single-celled organisms that lack a nucleus.


Question: Prokaryotes are single celled living things in the animal kingdom that don't have a what?\nOptions:\n- (A) epidermal\n- (B) genus\n- (C) complex\n- (D) extinction\n- (E) food\n- (F) nucleus\n- (G) properties\n- (H) alleles

Answer: (F)

Prokaryotes are single-celled organisms that lack a nucleus. An organism is a living thing. Prokaryotes are single celled living things that lack a nucleus.


Question: Neurotransmitters and hormones are what in their function?\nOptions:\n- (A) cells\n- (B) organic\n- (C) inorganic\n- (D) complex\n- (E) Vibrates\n- (F) warm\n- (G) properties\n- (H) similar

Answer: (H)

Hormones are chemical messengers that control many body functions. Neurotransmitters are chemical messengers in the brain. Hormones and neurotransmitters behave in common ways.


Question: What uses food for energy?\nOptions:\n- (A) Most plants\n- (B) no organisms\n- (C) agriculture\n- (D) the Moon\n- (E) animals\n- (F) athletes\n- (G) most organisms\n- (H) the Sun

Answer: (G)

Glucose is used for energy by the cells of most organisms. Food is converted into glucose. Food is used for energy by most organisms.


Question: What is used as energy by most organisms?\nOptions:\n- (A) sodium\n- (B) water\n- (C) energy.\n- (D) food\n- (E) sugar\n- (F) Energy\n- (G) solutes\n- (H) light

Answer: (E)

Glucose is used for energy by the cells of most organisms. For instance, glucose is a sugar. Sugar is used for energy by the cells of most organisms.


Question: What gets converted into the type of energy that animal cells need?\nOptions:\n- (A) photosynthesis\n- (B) solar energy\n- (C) sugar\n- (D) UV\n- (E) food\n- (F) water\n- (G) Energy\n- (H) Light

Answer: (E)

Glucose is used for energy by the cells of most organisms. Food is converted into glucose. Food is converted into the type of energy that most cells use.


Question: What is used as energy by most of the organisms on earth\nOptions:\n- (A) sugar\n- (B) heat\n- (C) food\n- (D) water\n- (E) Light\n- (F) Energy\n- (G) salt\n- (H) carbon

Answer: (A)

Glucose is used for energy by the cells of most organisms. Blood Sugar Glucose is sugar. Sugar is used for energy by the cells of most organisms.


Question: What is used for energy in most cells?\nOptions:\n- (A) sugar\n- (B) sodium\n- (C) muscle\n- (D) maples\n- (E) calcium\n- (F) food\n- (G) silicon\n- (H) Energy

Answer: (A)

Glucose is used for energy by the cells of most organisms. Blood Sugar Glucose is sugar. Sugar is used for energy for the cells of most organisms.


Question: What is sugar stored as by the body?\nOptions:\n- (A) heat energy\n- (B) sun's heat\n- (C) A drug.\n- (D) A kernel\n- (E) energy\n- (F) glycogen\n- (G) lmestone\n- (H) Hemoglobin

Answer: (F)

Glucose is used for energy by the cells of most organisms. Glucose, the sugar the body uses for fuel, is stored as glycogen. Sugar is used for energry by the body is stored as glycogen.


Question: Cells are what to a limited number of divides?\nOptions:\n- (A) increased\n- (B) standardized\n- (C) warm-blooded\n- (D) critical organs\n- (E) forced\n- (F) programmed\n- (G) white\n- (H) fertile

Answer: (F)

Cells are programmed to divide only a set number of times. All ViroMed cells are passaged a limited number of times. Cells are programmed to a limited number of divides.


Question: What kicks in after a certain number of divisions?\nOptions:\n- (A) Energy.\n- (B) antibiotics\n- (C) Energy\n- (D) separation\n- (E) nerves\n- (F) apoptosis\n- (G) soccer leagues\n- (H) Plants growth

Answer: (F)

Cells are programmed to divide only a set number of times. Apoptosis is programed cell death. Division can only happen a certain number of times before apoptosis kicks in.


Question: Cells are programmed to _ only a set number of times.\nOptions:\n- (A) migrate\n- (B) expand\n- (C) A computer\n- (D) Most plants\n- (E) allow growth\n- (F) reproduce\n- (G) contract\n- (H) constrict

Answer: (F)

Cells are programmed to divide only a set number of times. Cells reproduce asexually, by dividing. Cells are programmed to reproduce only a set number of times.


Question: How many times can cells split into parts?\nOptions:\n- (A) As many times as it likes\n- (B) massive damage\n- (C) No times\n- (D) An infinite number of times\n- (E) heat produced\n- (F) during the day\n- (G) Temperature changing\n- (H) A set number of times

Answer: (H)

Cells are programmed to divide only a set number of times. Parts means something has been divided. Cells are programmed to split into parts only a set number of times.


Question: Where are roundworms useful in an ecosystem?\nOptions:\n- (A) killing animals\n- (B) soils\n- (C) fields\n- (D) bacteria\n- (E) eating plants\n- (F) wetland\n- (G) food\n- (H) alveoli

Answer: (B)

Roundworms make up the phylum Nematoda. Also, nematoda and rotifera are important groups contributing to soils. Roundworms make important contributions to soils.


Question: What has a range of sexual reproductive systems? \nOptions:\n- (A) Computer systems.\n- (B) Most plants\n- (C) animals\n- (D) Roundworms.\n- (E) mammals\n- (F) Art reproductions.\n- (G) insects\n- (H) Stuffed toy bears.

Answer: (D)

Roundworms make up the phylum Nematoda. Within the Nematoda, a range of reproductive systems occur. A range of reproductive systems occur in roundworms.


Question: _ contribute to soils.\nOptions:\n- (A) Sediment\n- (B) Aphids\n- (C) cacti\n- (D) Roundworms\n- (E) Exfoliation\n- (F) Amphibians\n- (G) Ringworms\n- (H) rainfall

Answer: (D)

Roundworms make up the phylum Nematoda. Also, nematoda and rotifera are important groups contributing to soils. Roundworms contribute to soils.


Question: What phylum are nematodes in?\nOptions:\n- (A) Most plants\n- (B) ferns\n- (C) parasites\n- (D) Epidermis\n- (E) white\n- (F) insects\n- (G) graptolites\n- (H) Nematoda

Answer: (H)

Roundworms make up the phylum Nematoda. Nematodes are simple roundworms. Nematodes are in the phylum Nematoda.


Question: What kind of bodies do earthworms have?\nOptions:\n- (A) non-segmented\n- (B) roots\n- (C) slimy\n- (D) fertile\n- (E) bioaerosols\n- (F) vertebrate\n- (G) more abundant\n- (H) segmented

Answer: (H)

Annelids are worms such as the familiar earthworm. Annelids have bodies that are segmented. Earthworms have segmented bodies.


Question: What is under the same family as worms?\nOptions:\n- (A) animals\n- (B) parasites\n- (C) bacteria\n- (D) eels\n- (E) ant\n- (F) leeches\n- (G) snakes\n- (H) infected

Answer: (F)

Annelids are worms such as the familiar earthworm. Annelids include earthworms and leeches. Leeches are related to worms.


Question: Earthworm bodies are:\nOptions:\n- (A) fertile\n- (B) segmented\n- (C) migrate\n- (D) allow growth\n- (E) revolving\n- (F) more abundant\n- (G) Loose\n- (H) Absorb light

Answer: (B)

Annelids are worms such as the familiar earthworm. Annelids have bodies that are segmented. The familiar earthworm has a segmented body.


Question: One example of an annelid has how many hearts?\nOptions:\n- (A) three\n- (B) Five\n- (C) white\n- (D) warm\n- (E) four\n- (F) strong\n- (G) long\n- (H) small

Answer: (B)

Annelids are worms such as the familiar earthworm. An earthworm has five hearts. An animal that has five hearts is an annelid.


Question: Earthworms can regrow their segments that break off and eat what?\nOptions:\n- (A) fungi\n- (B) stem\n- (C) soil\n- (D) nektar\n- (E) meat\n- (F) deer\n- (G) dirt\n- (H) birds

Answer: (C)

Annelids have the amazing capacity to regrow segments that break off. Earthworm Jim the greatest soil munchin' annelid fansite has been re-located. Earthworms are soil eating and can regrow their segments that break off.


Question: _ have the amazing capacity to regrow segments.\nOptions:\n- (A) ferns\n- (B) arachnids\n- (C) roots\n- (D) earthworms\n- (E) anthropods\n- (F) crustacean\n- (G) loose soil\n- (H) root growth

Answer: (D)

Annelids have the amazing capacity to regrow segments that break off. Earthworms Earthworms are in the phylum Annelids. Earthworms have the amazing capacity to regrow segments that break off.


Question: Earthworms have the amazing capacity to regrow segments that:\nOptions:\n- (A) reproduce\n- (B) tadpoles\n- (C) Loose\n- (D) form sand\n- (E) are still attached\n- (F) allow growth\n- (G) break off\n- (H) fungal

Answer: (G)

Annelids have the amazing capacity to regrow segments that break off. Earthworms Earthworms are in the phylum Annelids. Earthworms have the amazing capacity to regrow segments that break off.


Question: What animal can regrow middle segments when broken?\nOptions:\n- (A) amoeba\n- (B) geckos\n- (C) humans\n- (D) insects\n- (E) Wasps\n- (F) worms\n- (G) toads\n- (H) snakes

Answer: (F)

Annelids have the amazing capacity to regrow segments that break off. Annelids include earthworms and leeches. Earthworms have the ability to regrow segments that break off.


Question: What regrows broken off segments of itself?\nOptions:\n- (A) barnacles\n- (B) teeth\n- (C) roots\n- (D) earthworm\n- (E) Leptospirosis\n- (F) spiders\n- (G) cells\n- (H) root growth

Answer: (D)

Annelids have the amazing capacity to regrow segments that break off. Earthworms are annelids meaning segmented. Earthworms can regrow broken off segments of their bodies.


Question: What can regrow sections that they have lost?\nOptions:\n- (A) leeches\n- (B) alveoli\n- (C) crocodiles\n- (D) vegetation\n- (E) a fish\n- (F) bacteria\n- (G) barnacles\n- (H) sharks

Answer: (A)

Annelids have the amazing capacity to regrow segments that break off. Annelids include earthworms and leeches. Leeches have the amazing capacity to regrow segments that break off.


Question: What often precedes mating?\nOptions:\n- (A) A Greek letter\n- (B) competition\n- (C) friendship\n- (D) birth of a child\n- (E) death\n- (F) Chemical energy\n- (G) pregnancy\n- (H) sweating

Answer: (C)

Mating is generally preceded by courtship. Friendship usually precedes courtship, and courtship, marriage. Friendship often comes before mating.


Question: Copulation is generally preceded by what?\nOptions:\n- (A) pollination\n- (B) sound\n- (C) Vibrates\n- (D) impregnation\n- (E) Decibels\n- (F) fertilization\n- (G) courtship\n- (H) pollen

Answer: (G)

Mating is generally preceded by courtship. Copulation starts early in the mating season and usually stops when nesting begins. Copulation is generally preceded by courtship.


Question: What is generally similar across species?\nOptions:\n- (A) tail fins\n- (B) our star\n- (C) the eyes\n- (D) vision\n- (E) mating\n- (F) Flowers\n- (G) bushes\n- (H) alpacas

Answer: (E)

Mating is generally preceded by courtship. Courtship is similar across species. Mating is generally similar across species.


Question: Where do parasites get their nutrients?\nOptions:\n- (A) an area swollen with pus\n- (B) water\n- (C) an organism's body\n- (D) they body they live in\n- (E) minerals\n- (F) eat plants or other animal\n- (G) aqueous solution\n- (H) dead hosts

Answer: (D)

Some parasites kill their host, but most do not. Nutrients of the host are most likely absorbed through the body surface of the parasite. Parasites get their nutrients from the body they live in.


Question: Some what will kill their host, while others won't?\nOptions:\n- (A) barnacles\n- (B) producers\n- (C) scavengers\n- (D) insects\n- (E) cigarettes\n- (F) fungi\n- (G) plants\n- (H) leeches

Answer: (H)

Some parasites kill their host, but most do not. Leeches are external parasites. Some leeches will kill their host, but most do not.


Question: A parasites that can kill is called what?\nOptions:\n- (A) bacteria\n- (B) a carcinogen\n- (C) A Greek letter\n- (D) a pathogens\n- (E) animals\n- (F) an infection\n- (G) insects\n- (H) dangerous

Answer: (D)

Some parasites kill their host, but most do not. Pathogens induce a disease in their host. Some parasites that kill are called pathogens, but most do not.


Question: Some what which live off a host kill it, but most do not?\nOptions:\n- (A) offspring\n- (B) pets\n- (C) poisons\n- (D) fungi\n- (E) Leptospirosis\n- (F) bacteria\n- (G) animals\n- (H) organisms

Answer: (H)

Some parasites kill their host, but most do not. Parasites are organisms which live off a host. Some organisms which live off a host kill it, but most do not.


Question: What can a certain protein affect in meat?\nOptions:\n- (A) health\n- (B) piousness\n- (C) stamina\n- (D) retina\n- (E) toughness\n- (F) liveliness\n- (G) saltiness\n- (H) Energy

Answer: (E)

Cartilage is a tough tissue that contains a protein called collagen. Collagen contributes to meat toughness. A protein contributes to meat toughness.


Question: Sharks have as skeleton that contains\nOptions:\n- (A) elastin\n- (B) Epidermis\n- (C) calcium\n- (D) fur and fat\n- (E) marrow\n- (F) strength\n- (G) all matter\n- (H) collagen

Answer: (H)

Cartilage is a tough tissue that contains a protein called collagen. Sharks have a cartilage skeleton. Sharks have as skeleton that contains a protein called collagen.


Question: Cartilage is a tough tissue made up of:\nOptions:\n- (A) a cuticle\n- (B) bones\n- (C) Joules\n- (D) neurons\n- (E) the skin\n- (F) loose soil\n- (G) fibrils\n- (H) muscle

Answer: (G)

Cartilage is a tough tissue that contains a protein called collagen. Many collagen fibrils come together and form a collagen and forma collagen fiber. Cartilage is a tough tissue made up of fibrils.


Question: What does cricoid contain?\nOptions:\n- (A) Bodily water\n- (B) cellulum\n- (C) cellulite\n- (D) Energy\n- (E) hydrocarbons\n- (F) cellulose\n- (G) cellular\n- (H) layers of fat

Answer: (F)

Cartilage is a tough tissue that contains a protein called collagen. Membranes attached to the cricoid cartilage . Cricoid is a tough tissue that contains a protein called collagen.


Question: There are what who study how animals behave in their natural environment.\nOptions:\n- (A) infants\n- (B) heat or cold\n- (C) insects\n- (D) sensory neurons\n- (E) scientists\n- (F) people\n- (G) humans\n- (H) reptiles

Answer: (E)

Ethologists usually study how animals behave in their natural environment. Ethologists are scientists who study animals in their natural habitats. There are scientists who study how animals behave in their natural environment.


Question: Scientists study animal behavior through which of the following?\nOptions:\n- (A) audio and video tape\n- (B) Electrical energy\n- (C) irradiation\n- (D) A computer\n- (E) raising their temperature\n- (F) Something coming from a gland\n- (G) The bending of a ray of light\n- (H) characteristics

Answer: (A)

Ethologists usually study how animals behave in their natural environment. Many ethologists capture their observations on videotape or audio tape. Scientists who study how animals behave use videotape or audio tape.


Question: Ethologists study how animals behave in animals'\nOptions:\n- (A) Summer\n- (B) state\n- (C) Birds\n- (D) life\n- (E) seasons\n- (F) health\n- (G) homes\n- (H) fields

Answer: (G)

Ethologists usually study how animals behave in their natural environment. Environments are animals homes. Ethologists usually study how animals behave in the animals' homes.


Question: What do organisms cluster around, in the ocean floor?\nOptions:\n- (A) cracks\n- (B) chemicals\n- (C) limestone\n- (D) crust\n- (E) headaches\n- (F) Nutrients\n- (G) horses\n- (H) dogs

Answer: (A)

Organisms cluster around hydrothermal vents in the ocean floor. Background Hot water vents form inside cracks in the ocean floor. Organisms cluster around cracks in the ocean floor.


Question: What clusters around the heat of submarine volcanoes?\nOptions:\n- (A) ferns\n- (B) organisms\n- (C) vegetation\n- (D) humans\n- (E) emissions\n- (F) Energy\n- (G) insects\n- (H) the sun

Answer: (B)

Organisms cluster around hydrothermal vents in the ocean floor. Hydrothermal vents are powered by the heat of submarine volcanoes. Organisms cluster around the heat of submarine volcanoes.


Question: Where do organisms cluster on the ocean floor?\nOptions:\n- (A) neutralized water\n- (B) where they used to live\n- (C) hot alkaline water\n- (D) fissures of hot, acidic water\n- (E) sedimentary rocks\n- (F) fissures blasting cold water\n- (G) at or near the margins\n- (H) an area swollen with pus

Answer: (D)

Organisms cluster around hydrothermal vents in the ocean floor. Hydrothermal vents are fissures in the ocean floor that leak hot, acidic water. Organisms cluster around fissures in the ocean floor that leak hot, acidic water.


Question: Organisms cluster around hot water inside cracks where?\nOptions:\n- (A) loose soil\n- (B) ocean floor\n- (C) food and shelter\n- (D) tectonic plates\n- (E) the ground\n- (F) allow growth\n- (G) Absorb light\n- (H) survive

Answer: (B)

Organisms cluster around hydrothermal vents in the ocean floor. Background Hot water vents form inside cracks in the ocean floor. Organisms cluster around hot water inside cracks in the ocean floor.


Question: What do organisms cluster around in the ocean floor?\nOptions:\n- (A) kalenchoes\n- (B) ferns\n- (C) bacteria\n- (D) Chimneys\n- (E) an object\n- (F) alveoli\n- (G) graptolites\n- (H) allow growth

Answer: (D)

Organisms cluster around hydrothermal vents in the ocean floor. Chimneys top some hydrothermal vents. Organisms cluster around chimneys in the ocean floor.


Question: What can affect the small organelles where proteins are made?\nOptions:\n- (A) Allergies\n- (B) Smoking\n- (C) harm them\n- (D) pizza\n- (E) antibiotics\n- (F) adding heat\n- (G) beef\n- (H) carbohydrates

Answer: (E)

Ribosomes are small organelles where proteins are made. Many antibiotics affect the ribosome. Many antibiotics affect the small organelles where proteins are made.


Question: Ribosomes are _.\nOptions:\n- (A) Something to move\n- (B) more abundant\n- (C) interact\n- (D) Most plants\n- (E) hypertrophic\n- (F) revolving\n- (G) Energy.\n- (H) fertile

Answer: (E)

Ribosomes are small organelles where proteins are made. All cell organelles are hypertrophic. Ribosomes are hypertrophic.


Question: What do bacteria not have, for protein production?\nOptions:\n- (A) Acids\n- (B) alleles\n- (C) ribosomes\n- (D) layers of fat\n- (E) light energy\n- (F) heat energy\n- (G) Energy\n- (H) Energy.

Answer: (C)

Ribosomes are small organelles where proteins are made. Bacteria contain no organelles. Bacteria do not have ribosomes for protein production.


Question: What are lizards able to use their tongues to do?\nOptions:\n- (A) taste\n- (B) arrange their nest\n- (C) noise\n- (D) measure prey length\n- (E) smell the color of organs\n- (F) snort\n- (G) breathe\n- (H) vibrate

Answer: (A)

Amphibians have sense organs to smell and taste chemicals. Lizards use their tongues as sense organs. Lizards are able to use their tongues to taste.


Question: What do sense organs help bullfrogs do?\nOptions:\n- (A) excrete waste\n- (B) empty gall bladder\n- (C) An object is seen\n- (D) Move to another area\n- (E) Catch prey\n- (F) protect them\n- (G) smell and eat\n- (H) smell and taste

Answer: (H)

Amphibians have sense organs to smell and taste chemicals. Bullfrogs eat other amphibians. Bullfrogs can smell and taste chemicals through sense organs.


Question: Amphibians have what sort of sensing system?\nOptions:\n- (A) strong\n- (B) retina\n- (C) four limbs\n- (D) chemical\n- (E) mechanical\n- (F) the eyes\n- (G) nerves\n- (H) heat or cold

Answer: (D)

Amphibians have sense organs to smell and taste chemicals. Smell and taste belong to our chemical sensing system. Amphibians have a chemical sensing system.


Question: _ are aerobic\nOptions:\n- (A) goats\n- (B) plants\n- (C) algae\n- (D) moss\n- (E) cells\n- (F) chloroplast\n- (G) complex\n- (H) humans

Answer: (E)

Cells cannot survive without oxygen. Bacteria that require oxygen are aerobic. Cells are aerobic.


Question: Cells cannot live without what commonly occuring element found on earth?\nOptions:\n- (A) Air\n- (B) matter\n- (C) Light\n- (D) fossil fuel\n- (E) oxygen\n- (F) carbon\n- (G) sunlight\n- (H) water

Answer: (E)

Cells cannot survive without oxygen. Survival is to live, to live means hope. Cells cannot live without oxygen.


Question: What is something cells cannot survive without?\nOptions:\n- (A) gas\n- (B) Air\n- (C) O2\n- (D) CO2\n- (E) Ca\n- (F) O3\n- (G) Fe\n- (H) He

Answer: (C)

Cells cannot survive without oxygen. And oxygen, O2, is the molecule to do it. Cells cannot survive without O2.


Question: Sperm swim to an egg inside a what?\nOptions:\n- (A) gastropod shells\n- (B) aqueous solution\n- (C) archetype\n- (D) archive\n- (E) ocean water\n- (F) pollen\n- (G) archegonium\n- (H) sperm

Answer: (G)

Fertilization occurs when sperm swim to an egg inside an archegonium. Pregnancy begins with a fertilized egg. Pregnancy begins after sperm swim to an egg inside an archegonium.


Question: What happens in the archegonium?\nOptions:\n- (A) eggs separate\n- (B) Earth orbiting the Sun\n- (C) sperm and egg fuse\n- (D) competition\n- (E) fallopian tubes join\n- (F) permineralization\n- (G) It expands\n- (H) cloning

Answer: (C)

Fertilization occurs when sperm swim to an egg inside an archegonium. Fertilization occurs when the egg and sperm fuse and join. An egg and sperm can fuse when sperm swim to an egg inside an archegonium.


Question: What occurs when a male gamete swims to an egg?\nOptions:\n- (A) permineralization\n- (B) competition\n- (C) movement\n- (D) rapid expansion\n- (E) fertilization\n- (F) birth\n- (G) copulation\n- (H) ovulation

Answer: (E)

Fertilization occurs when sperm swim to an egg inside an archegonium. Gametes in males are called sperm, and in women commonly referred to as eggs. Fertilization occurs when male gametes swim to an egg.


Question: What do most molds get their organic compounds from?\nOptions:\n- (A) dead organisms\n- (B) particles in the air\n- (C) fossil fuels\n- (D) aqueous solution\n- (E) burning coal\n- (F) living organisms\n- (G) swamp vegetation\n- (H) sunlight

Answer: (A)

Most fungi get organic compounds from dead organisms. Fungi include yeasts, molds, and fleshy fungi. Molds get organic compound from dead organisms.


Question: Where do most fungi get their protein?\nOptions:\n- (A) protein synthesis\n- (B) loose soil\n- (C) swamp vegetation\n- (D) alveoli\n- (E) dead organisms\n- (F) by indirect light\n- (G) glycopeptides\n- (H) carbon dioxide

Answer: (E)

Most fungi get organic compounds from dead organisms. Proteins are complex organic compounds. Most fungi get proteins from dead organisms.


Question: What gets organic compounds from dead organisms?\nOptions:\n- (A) plants\n- (B) elms\n- (C) mud\n- (D) molds\n- (E) dead cats\n- (F) cows\n- (G) trees\n- (H) sludge

Answer: (D)

Most fungi get organic compounds from dead organisms. Molds are microscopic fungi. Molds get organic compounds from dead organisms.


Question: What is one thing organic compounds can be broken down by?\nOptions:\n- (A) glucose\n- (B) chemicals\n- (C) trees\n- (D) Cooking\n- (E) oxygen\n- (F) plants\n- (G) Acids\n- (H) bacteria

Answer: (F)

Most fungi get organic compounds from dead organisms. Bacteria, fungi and plants can be used to break down organic compounds or extract metals. Organic compounds are broken down by plants.


Question: What do animals use as a food course?\nOptions:\n- (A) it keeps an organism warm\n- (B) water\n- (C) Generating heat\n- (D) Organic compounds\n- (E) deadwood\n- (F) light energy\n- (G) other living things\n- (H) inorganic

Answer: (G)

Heterotrophs get food by eating other living things. Animals are heterotrophs, or other-feeders. Animals get food by eating other living things.


Question: Great egrets get food by doing what?\nOptions:\n- (A) sleeping\n- (B) eating other living things\n- (C) Transfers energy\n- (D) converting mass to energy\n- (E) Something coming from a gland\n- (F) photosynthesis\n- (G) dying\n- (H) competing for resources

Answer: (B)

Heterotrophs get food by eating other living things. Great egrets are heterotrophs . Great egrets get food by eating other livings things.


Question: What can have special excretory systems?\nOptions:\n- (A) feces\n- (B) barnacles\n- (C) animals\n- (D) cacti\n- (E) fungi\n- (F) wings\n- (G) soil\n- (H) insects

Answer: (H)

Some arthropods have special excretory structures. Insects are the largest group of arthropods. Some insects have special excrectory structures.


Question: Crustaceans and insects have what special structures?\nOptions:\n- (A) the eyes\n- (B) a cuticle\n- (C) internal\n- (D) excretory\n- (E) invisible\n- (F) Chlorophyll\n- (G) fur and fat\n- (H) muscled

Answer: (D)

Some arthropods have special excretory structures. Crustaceans are, like insects, arthropods. Crustaceans and insects have special excretory structures.


Question: What has a special excretory structure?\nOptions:\n- (A) Silk plants.\n- (B) Insects.\n- (C) a fish\n- (D) animals\n- (E) plants\n- (F) Architecture structures.\n- (G) barnacles\n- (H) Corset structure.

Answer: (B)

Some arthropods have special excretory structures. All insects are arthropods. Insects have special excretory structures.


Question: Lobsters have special structures for:\nOptions:\n- (A) excretion\n- (B) Cooking\n- (C) produce light\n- (D) staying warm\n- (E) butter\n- (F) Maine\n- (G) layers of fat\n- (H) tastiness

Answer: (A)

Some arthropods have special excretory structures. An ant and a lobster are both arthropods. Lobsters have special excretory structures.


Question: What is the name of something some animals use to conserve water and elminate waste?\nOptions:\n- (A) it keeps an organism warm\n- (B) food and shelter\n- (C) Exfoliation\n- (D) an area swollen with pus\n- (E) swamp vegetation\n- (F) excretory structures\n- (G) reusing materials\n- (H) colder and wetter

Answer: (F)

Some arthropods have special excretory structures. Terrestrial arthropods have an excretory system that conserves water and eliminates waste. Some animals have excretory structures that conserve water and elminate waste.


Question: What is a producer in terrestrial biomes?\nOptions:\n- (A) food\n- (B) Oak\n- (C) mammals\n- (D) flowers\n- (E) earth\n- (F) grass\n- (G) Trees\n- (H) mushrooms

Answer: (F)

Plants are the major producers in terrestrial biomes. Grasses are very distinctive plants. Grass is a producer in terrestrial biomes.


Question: What is an important deposit feeder that helps form and enrich soil?\nOptions:\n- (A) A reptile\n- (B) swamp vegetation\n- (C) bacteria\n- (D) A male\n- (E) shrub beds\n- (F) A hermaphrodite\n- (G) An amphibian\n- (H) peachleaf willow

Answer: (F)

Earthworms are important deposit feeders that help form and enrich soil. Life Cycle Earthworms are hermaphrodites. A hermaphrodite is an important deposit feeder that helps form and enrich soil.


Question: Invertebrates can be what?\nOptions:\n- (A) people\n- (B) scarce resources\n- (C) vertebrates\n- (D) deposit feeders\n- (E) Catch prey\n- (F) major threat to health\n- (G) more abundant\n- (H) planets

Answer: (D)

Earthworms are important deposit feeders that help form and enrich soil. Earthworms by Casey Earthworms are invertebrates. Invertebrates can be deposit feeders.


Question: What do earthworms ingest in order to form and enrich soil?\nOptions:\n- (A) segmented\n- (B) vegetation\n- (C) sediment\n- (D) bacteria\n- (E) Chlorophyll\n- (F) sandworm\n- (G) crawling\n- (H) dirt

Answer: (C)

Earthworms are important deposit feeders that help form and enrich soil. Deposit feeders ingest sediment and then extract the food. Earthworms ingest sediment to then help form and enrich soil.


Question: An earthworm is an important\nOptions:\n- (A) allow growth\n- (B) cleaner for earth\n- (C) Plant reproduction\n- (D) more abundant\n- (E) parasite\n- (F) Something that makes plants green\n- (G) predator\n- (H) deposit feeder for earth

Answer: (H)

Earthworms are important deposit feeders that help form and enrich soil. Earth stands for soil, dust or ground. Earthworms are important deposit feeders that help form and enrich earth.


Question: Fur is a fiber that is found only in what type of animal?\nOptions:\n- (A) goats\n- (B) mammal\n- (C) humans\n- (D) mushrooms\n- (E) animals\n- (F) fish\n- (G) protists\n- (H) feet

Answer: (B)

Hair is a fiber that is found only in mammals. Mammals have fur or hair. Fur is a fiber that is found only in mammals.


Question: Fur is a fiber that is found only on what kind of animal?\nOptions:\n- (A) animals\n- (B) reptiles\n- (C) bird\n- (D) humans\n- (E) mammals\n- (F) insects\n- (G) goats\n- (H) Animal fur

Answer: (E)

Hair is a fiber that is found only in mammals. All mammals have fur or hair. Fur is a fiber that is found only in mammals.


Question: What fiber can be found only in warm-blooded animals?\nOptions:\n- (A) teeth\n- (B) birth marks\n- (C) muscle\n- (D) taste buds\n- (E) hair\n- (F) wool\n- (G) sugar\n- (H) fur

Answer: (E)

Hair is a fiber that is found only in mammals. All mammals are warm-blooded. Hair is a fiber that is found only in warm-blooded animals.


Question: What is more complex in eukaryotes than in prokaryotes?\nOptions:\n- (A) plants\n- (B) cell immigration\n- (C) cell establishment\n- (D) pollen\n- (E) explosions\n- (F) mitosis\n- (G) A computer\n- (H) orchids

Answer: (F)

Cell division is more complex in eukaryotes than prokaryotes. Asexual cell division is called Mitosis. Mitosis is more complex in eukaryotes than prokaryotes.


Question: Cell division in what is more complex than cell division in prokaryotes?\nOptions:\n- (A) bacteria\n- (B) archaea\n- (C) animals\n- (D) SO2\n- (E) fungi\n- (F) plants\n- (G) complex\n- (H) E. coli

Answer: (F)

Cell division is more complex in eukaryotes than prokaryotes. All plants are eukaryotes. Cell division is more complex in plants than prokaryotes.


Question: What is less complex in smaller, simple cells?\nOptions:\n- (A) sensory neurons\n- (B) Cell death\n- (C) peachleaf willow\n- (D) Cell division\n- (E) Sex\n- (F) permineralization\n- (G) Veins and arteries.\n- (H) Pregnancy

Answer: (D)

Cell division is more complex in eukaryotes than prokaryotes. Prokaryotes are smaller and simpler than eukaryotes. Cell division is less complex in smaller, simple cells.


Question: This process is always more complex in eukaryotes than prokaryotes\nOptions:\n- (A) eukaryotic infection\n- (B) mitosis\n- (C) kinetic\n- (D) movement\n- (E) breathing\n- (F) recycling\n- (G) photosynthesis\n- (H) relocation

Answer: (B)

Cell division is more complex in eukaryotes than prokaryotes. Mitosis is cell division. Eukaryotes have more complex mitosis than prokaryotes.


Question: Cell division is more complex in organisms with what?\nOptions:\n- (A) Chemical energy\n- (B) Earth orbiting the Sun\n- (C) Electrical energy\n- (D) faster movement\n- (E) scarce resources\n- (F) aerobic capacity\n- (G) Localized damage\n- (H) rapid expansion

Answer: (D)

Cell division is more complex in eukaryotes than prokaryotes. Eukaryotes move much faster than prokaryotes. Cell division is more complex in organisms with faster movement.


Question: _ is more complex in eukaryotes than prokaryotes.\nOptions:\n- (A) voltage\n- (B) disease\n- (C) Epidermis\n- (D) Mitosis\n- (E) organ\n- (F) distance\n- (G) recycling\n- (H) resistance

Answer: (D)

Cell division is more complex in eukaryotes than prokaryotes. Mitosis is cell division. Mitosis is more complex in eukaryotes than prokaryotes.


Question: Something more complex in eukaryotes than prokaryotes leads to what?\nOptions:\n- (A) harm them\n- (B) sweating\n- (C) Growth\n- (D) illness\n- (E) fever\n- (F) parasites\n- (G) death\n- (H) recycling

Answer: (C)

Cell division is more complex in eukaryotes than prokaryotes. Cell division leads to the growth of cells in the population. Something that leads to growth is more complex in eukaryotes than prokaryotes.


Question: What breathes with gills as larvae and with lungs as adults.\nOptions:\n- (A) Salmon.\n- (B) Frogs.\n- (C) parasites\n- (D) Whales.\n- (E) Mice.\n- (F) a fish\n- (G) air\n- (H) tortoises

Answer: (B)

Most amphibians breathe with gills as larvae and with lungs as adults. All frogs are amphibians. Most frogs breathe with gills as larvae and with lungs as adults.


Question: How do ost frogs breathe as tadpoles?\nOptions:\n- (A) gills\n- (B) sucking in air\n- (C) oxygen\n- (D) lungs\n- (E) ligt\n- (F) nektar\n- (G) skin\n- (H) ovaries

Answer: (A)

Most amphibians breathe with gills as larvae and with lungs as adults. Frogs are the most durable of the amphibians. Most frogs breathe with gills as larvae and with lungs as adults.


Question: What do frogs breathe with when they are adults?\nOptions:\n- (A) skin\n- (B) fins\n- (C) lungs\n- (D) oxygen\n- (E) gills\n- (F) air\n- (G) Energy\n- (H) Gases

Answer: (C)

Most amphibians breathe with gills as larvae and with lungs as adults. All frogs are amphibians. Frogs breathe with gills as larvae and with lungs as adults.


Question: A response to what occurs when many muscles contract a little at once?\nOptions:\n- (A) heat\n- (B) cold\n- (C) sweat\n- (D) pain\n- (E) forces\n- (F) stress\n- (G) comfort\n- (H) motion

Answer: (B)

Shivering occurs when many muscles contract a little bit all at once. Another response to cold is shivering. A response to cold occurs when many muscles contract a little at once.


Question: What ccurs when many muscles contract a little bit all at once?\nOptions:\n- (A) heat production\n- (B) heat loss\n- (C) sweating\n- (D) permineralization\n- (E) hypothermia\n- (F) resistance\n- (G) cramping\n- (H) heat energy

Answer: (A)

Shivering occurs when many muscles contract a little bit all at once. Heat production is increased by shivering and non-shivering thermogenesis . Heat production occurs when many muscles contract a little bit all at once.


Question: What does shivering generate?\nOptions:\n- (A) kinetic\n- (B) energy\n- (C) friction\n- (D) Energy.\n- (E) expels heat\n- (F) heat\n- (G) warmth\n- (H) rhythm

Answer: (G)

Shivering occurs when many muscles contract a little bit all at once. Shivering causes muscle contractions to warm the body. The contractions caused by shivering generates warmth.


Question: When many muscles contract a little bit, simultaenous, it produces:\nOptions:\n- (A) forces\n- (B) heat\n- (C) cold blooded\n- (D) sweat\n- (E) electrical energy\n- (F) Energy\n- (G) pain\n- (H) thermal displacement

Answer: (B)

Shivering occurs when many muscles contract a little bit all at once. Heat production is increased by shivering and non-shivering thermogenesis . Heat production is increased when many muscles contract a little bit, all at once.


Question: Who can shiver?\nOptions:\n- (A) bats\n- (B) Sidewalks\n- (C) humans\n- (D) Bees\n- (E) koalas\n- (F) Mountains\n- (G) Trees\n- (H) people

Answer: (D)

Shivering occurs when many muscles contract a little bit all at once. Honey bees generate heat by consuming honey and shivering their muscles. Honey bees can shiver.


Question: What is something that correlates with temperature change?\nOptions:\n- (A) Lift\n- (B) fronts\n- (C) heat\n- (D) wind\n- (E) fever\n- (F) sweat\n- (G) Joules\n- (H) stress

Answer: (A)

Temperature falls from lower to higher altitudes. Lift decreases with altitude. Lower temperatures align with lower lifts.


Question: The measurement of what falls from lower to higher altitudes?\nOptions:\n- (A) snow\n- (B) rain\n- (C) Energy\n- (D) heat\n- (E) Inches\n- (F) meters\n- (G) H 2 O\n- (H) motion

Answer: (D)

Temperature falls from lower to higher altitudes. Heat and temperature are the same. Heat falls from lower to higher altitudes.


Question: What do most salamanders use to find a mate?\nOptions:\n- (A) olfaction\n- (B) sound\n- (C) seduction\n- (D) fur and fat\n- (E) heat energy\n- (F) air\n- (G) environment\n- (H) water

Answer: (A)

Most salamanders use their sense of smell to find a mate. Olfaction is the sense of smell. Most salamanders use olfaction to find a mate.


Question: What organism uses their sense of smell to find a mate?\nOptions:\n- (A) fur seals\n- (B) bears\n- (C) Amphibians\n- (D) Fish\n- (E) mammals\n- (F) Butterflies\n- (G) rabbit\n- (H) Honey smelling bees

Answer: (C)

Most salamanders use their sense of smell to find a mate. Salamanders are a type of amphibian. Some amphibians use their sense of smell to find a mate.


Question: In their quest for reproduction, salamanders are assisted by their what?\nOptions:\n- (A) animals\n- (B) kinetic energy\n- (C) sense of irony\n- (D) taste in clothing\n- (E) fur and fat\n- (F) sense of smell\n- (G) chameleon\n- (H) insects

Answer: (F)

Most salamanders use their sense of smell to find a mate. Food to survive, mates to reproduce, and water to drink. To reproduce, salamanders are assisted by their sense of smell.


Question: How do salamanders usually find sexual partners?\nOptions:\n- (A) mouth of rivers\n- (B) It helps them survive\n- (C) interact\n- (D) it needs them\n- (E) competition\n- (F) movement\n- (G) sense of smell\n- (H) heat produced

Answer: (G)

Most salamanders use their sense of smell to find a mate. To couple in sexual union, to be matched or mated. Most salamanders find sexual partners by their sense of smell.


Question: Electron transport requires which of the following?\nOptions:\n- (A) electron microscope\n- (B) sodium\n- (C) Energy.\n- (D) Oxygen\n- (E) fission\n- (F) warmth\n- (G) flagellum\n- (H) Energy

Answer: (D)

Electron transport is the final stage of aerobic respiration. Aerobic respiration occurs only in the presence of oxygen. Electron transport occurs only in the presence of oxygen.


Question: What is the last stage of aerobic transportation?\nOptions:\n- (A) formation of acetyl coenzyme A\n- (B) Glycolysis\n- (C) electron transport\n- (D) Dehydration\n- (E) citric acid cycle\n- (F) flow of electrons\n- (G) recovery time from fatigue\n- (H) weight-lifting

Answer: (C)

Electron transport is the final stage of aerobic respiration. Last, the final project is due. Electron transport in the last stage of aerobic respiration.


Question: What wets the skin, and when it evaporates, it cools the body?\nOptions:\n- (A) Heat energy\n- (B) salt and water\n- (C) acetic acid\n- (D) urine\n- (E) ice\n- (F) Chlorophyll\n- (G) white vinegar\n- (H) blood

Answer: (B)

Sweat wets the skin, and when it evaporates, it cools the body. Sweat is made of salt and water. Water and salt wets the skin, and when it evaporates, it cools the body.


Question: Perspiration does what to the skin when it is evaporated from the skin onto the air?\nOptions:\n- (A) reduced heat\n- (B) cleans it\n- (C) heats it\n- (D) temperature\n- (E) cools it\n- (F) heat or cold\n- (G) air cools\n- (H) turns it to steam

Answer: (E)

Sweat wets the skin, and when it evaporates, it cools the body. Diaphoresis is a fancy medical term for perspiration or sweating. Perspiration wets the skin and when it evaporates it cools the body.


Question: An overheated body can use water for:\nOptions:\n- (A) metabolic reaction\n- (B) dehydrating\n- (C) raising their temperature\n- (D) heat produced\n- (E) liquid\n- (F) watering plants\n- (G) evaporative cooling\n- (H) retaining heat

Answer: (G)

Sweat wets the skin, and when it evaporates, it cools the body. Sweat is made of salt and water. The evaporation of water from the skin cools the body.


Question: What interferes with cooling of the body?\nOptions:\n- (A) low humidity\n- (B) snow\n- (C) ice\n- (D) Sulfur dioxide\n- (E) Leptospirosis\n- (F) Smoking\n- (G) heat or cold\n- (H) high humidity

Answer: (H)

Sweat wets the skin, and when it evaporates, it cools the body. High humidity interferes with evaporation of the sweat. High humidity interferes with cooling of the body.


Question: What wets the skin, and when it evaporates, it cools the body?\nOptions:\n- (A) heat energy\n- (B) acetic acid\n- (C) Air conditioner\n- (D) salt and water.\n- (E) Skin oil\n- (F) water vapor\n- (G) Perspiration\n- (H) A towel

Answer: (G)

Sweat wets the skin, and when it evaporates, it cools the body. Perspiration There are about 2 million sweat glands in the average human body. Perspiration wets the skin, and when it evaporates, it cools the body.


Question: Sweat cools the body when it\nOptions:\n- (A) Movement of an air mass\n- (B) dry conditions\n- (C) heat produced\n- (D) Decreased precipitation\n- (E) hydration\n- (F) It expands\n- (G) the environment\n- (H) turns into a gas

Answer: (H)

Sweat wets the skin, and when it evaporates, it cools the body. Evaporation is when a liquid turns into a gas. Sweat cools the body when it turns into a gas.


Question: What do mussels eat?\nOptions:\n- (A) bivalves\n- (B) sub-units of species\n- (C) Something coming from a gland\n- (D) mussels\n- (E) plankton and nonliving organic\n- (F) Something made from fermented ricce\n- (G) mollusks\n- (H) Microscopic organisms

Answer: (E)

Bivalves feed on plankton and nonliving organic matter. Mussels are bivalve mollusks. Mussels eat plankton and nonliving organic matter.


Question: What feeds on plankton and nonliving organic matter?\nOptions:\n- (A) bacteria\n- (B) barnacles\n- (C) animals\n- (D) sharks\n- (E) pythons\n- (F) graptolites\n- (G) molluscs\n- (H) bears

Answer: (G)

Bivalves feed on plankton and nonliving organic matter. Bivalve molluscs are very common. Molluscs feed on plankton and nonliving organic matter.


Question: What can prevent 90 percent of the body's heat loss?\nOptions:\n- (A) Masks\n- (B) fur\n- (C) coats\n- (D) bald head\n- (E) increase body fat\n- (F) sweaters\n- (G) skin\n- (H) hair

Answer: (H)

Head hair is especially important in preventing heat loss from the body. Almost 90 percent of the body's heat loss is from the head. Without hair, 90 percent of the body's heat would be lost.


Question: Something that helps prevent hypothermia:\nOptions:\n- (A) dehydration\n- (B) freezing\n- (C) water\n- (D) head hair\n- (E) cold\n- (F) electricity\n- (G) Exfoliation\n- (H) sweating

Answer: (D)

Head hair is especially important in preventing heat loss from the body. Hypothermia Loss of body heat caused by exposure is called Hypothermia. Head hair is especially important in preventing hypothermia.


Question: What does head hair prevent the loss of?\nOptions:\n- (A) matter\n- (B) chemicals\n- (C) energy\n- (D) sunlight\n- (E) Nutrients\n- (F) warmth\n- (G) humidity\n- (H) sweating

Answer: (C)

Head hair is especially important in preventing heat loss from the body. Basically, heat is energy. Head hair is especially important in preventing energy loss from the body.


Question: What is important in preventing heat loss from the body?\nOptions:\n- (A) hydration\n- (B) a cuticle\n- (C) stay warm\n- (D) sweating\n- (E) warmth\n- (F) skin\n- (G) keratin\n- (H) Animal fur

Answer: (G)

Head hair is especially important in preventing heat loss from the body. Hair is actually composed of a protein called keratin. Keratin is especially important in preventing heat loss from the body.


Question: The vascular cambria allows:\nOptions:\n- (A) Exfoliation\n- (B) roots to grow\n- (C) plant\n- (D) movement\n- (E) Animal survival\n- (F) soil\n- (G) liver\n- (H) rapid expansion

Answer: (B)

Roots grow in length and width from primary and secondary meristem. Vascular cambium is a primary meristem. Roots grow in length and width from the vascular cambium.


Question: Carrots and beets what in length and width from primary and secondary meristem?\nOptions:\n- (A) grow shorter\n- (B) grow smaller\n- (C) grow bigger\n- (D) peachleaf willow\n- (E) grow narrower\n- (F) they bend\n- (G) In their leaves\n- (H) rapid expansion

Answer: (C)

Roots grow in length and width from primary and secondary meristem. For example, carrots and beets are roots. Carrots and beets grow in length and width from primary and secondary meristem.


Question: What grow in width and length.?\nOptions:\n- (A) crocodiles\n- (B) sedimentary rocks\n- (C) vegetation\n- (D) remains of prehistoric life\n- (E) swamp vegetation\n- (F) shrub beds\n- (G) underground systems\n- (H) loose dirt

Answer: (G)

Roots grow in length and width from primary and secondary meristem. Kids see the underground root systems of trees and then an aerial view of plants in the city. Underground systems grow in width and length.


Question: What is produced by alcoholic fermentation of glucose in corn?\nOptions:\n- (A) peachleaf willow\n- (B) A compound that donates proton\n- (C) A cleaning fluid\n- (D) A source of electricity\n- (E) A transportation fuel\n- (F) Organic compounds\n- (G) A yeast\n- (H) Chemical energy

Answer: (E)

Ethanol is produced by alcoholic fermentation of the glucose in corn or other plants. Ethanol is another transportation fuel. A transportation fuel is produced by alcoholic fermentation of the glucose in corn or other plants.


Question: What is produced by the fermentation in corn and other plants?\nOptions:\n- (A) carbon dioxide\n- (B) white vinegar\n- (C) gasoline\n- (D) grain alcohol\n- (E) glucose\n- (F) vinegar\n- (G) Organic compounds\n- (H) chlorofluorocarbons

Answer: (D)

Ethanol is produced by alcoholic fermentation of the glucose in corn or other plants. Ethanol is a grain alcohol. Grain alcohol is produced by fermentation of the glucose in corn or other plants.


Question: What is ethanol produced from?\nOptions:\n- (A) coal\n- (B) sugar\n- (C) SO2\n- (D) animal fat\n- (E) paper\n- (F) salts\n- (G) Trees\n- (H) Oak

Answer: (B)

Ethanol is produced by alcoholic fermentation of the glucose in corn or other plants. Glucose, a type of sugar, is the body's fuel. Ethanol is produced by alcoholic fermentation of the sugar in corn or other plants.


Question: What can fats consist of?\nOptions:\n- (A) Energy\n- (B) Weight\n- (C) ice\n- (D) chlorophyll\n- (E) water\n- (F) Energy.\n- (G) Chemical energy\n- (H) fatty acid

Answer: (H)

Lipids may consist of fatty acids alone, or they may contain other molecules as well. Fats are known as lipids. Fats may consist of fatty acids alone, or they may contain other molecules as well.


Question: Diverse hydrophobic molecules may consist of what type of acids?\nOptions:\n- (A) Acids\n- (B) solutes\n- (C) watery\n- (D) three\n- (E) cell\n- (F) rings\n- (G) dry\n- (H) fatty

Answer: (H)

Lipids may consist of fatty acids alone, or they may contain other molecules as well. Lipids Lipids are diverse hydrophobic molecules. Diverse hydrophobic molecules may consist of fatty acids alone.


Question: What can fatty acids be combined with, in addition to carbon and oxygen?\nOptions:\n- (A) Sodium\n- (B) Energy.\n- (C) glucose\n- (D) Carbon Dioxide\n- (E) Fuel cells\n- (F) Uranium\n- (G) Hydrogen\n- (H) Energy

Answer: (G)

Lipids may consist of fatty acids alone, or they may contain other molecules as well. Lipids Lipids are also composed of carbon, oxygen and hydrogen. Carbon, oxygen, and hydrogen can be combined with fatty acids.


Question: What is the major thing that biological membranes consist of?\nOptions:\n- (A) chemicals\n- (B) glucose\n- (C) lipids\n- (D) Energy\n- (E) complex\n- (F) oxygen\n- (G) matter\n- (H) an ion

Answer: (C)

Lipids may consist of fatty acids alone, or they may contain other molecules as well. All biological membranes contain lipids as the major constituent. All biological membranes have lipids as the main consituent which consist of fatty acids.


Question: What supplement would a human take to aid in breaking down food?\nOptions:\n- (A) sweating\n- (B) Energy\n- (C) Enzymes.\n- (D) Calcium supplements.\n- (E) Energy.\n- (F) Antacid.\n- (G) Protein supplement.\n- (H) evaporation

Answer: (C)

Digestion is the process of breaking down food into components the body can absorb. Digestive enzymes are necessary for a complete digestion. Enzymes break down food into components the body can absorb.


Question: What is the process of breaking down food proteins into energy or heat?\nOptions:\n- (A) dissecting\n- (B) dehydration\n- (C) elimination\n- (D) energy\n- (E) digestion\n- (F) Cooking\n- (G) calorie retention\n- (H) Evaporation

Answer: (E)

Digestion is the process of breaking down food into components the body can absorb. Food proteins are changed into energy or heat to be used or absorbed by the body. Digestion is the process of breaking down food proteins into energy or heat.


Question: What is the process of breaking down food into nutrients?\nOptions:\n- (A) recycling\n- (B) food processing\n- (C) digestion\n- (D) bacteria\n- (E) eating\n- (F) hydration\n- (G) Dehydration\n- (H) blender

Answer: (C)

Digestion is the process of breaking down food into components the body can absorb. Nutrients are absorbed by the intestines and if the walls are coated, fewer nutrients are absorbed. Digestion is the process of breaking down food into nutrients.


Question: Why do male gametes swim from male to female reproductive organs?\nOptions:\n- (A) temperature changes\n- (B) to leave the egg\n- (C) fertilization\n- (D) competition\n- (E) it needs them\n- (F) to feed\n- (G) permineralization\n- (H) to heal themselves

Answer: (C)

Sperm had to swim from male to female reproductive organs for fertilization. Male gametes are called sperm. Male gametes had to swim from male to female reproductive organs for fertilization.


Question: What happens when sperm swim from men's to women's reproductive organs?\nOptions:\n- (A) by indirect light\n- (B) matter vibrating\n- (C) death\n- (D) competition\n- (E) fertile crescent\n- (F) fertilizer\n- (G) permineralization\n- (H) fertilization

Answer: (H)

Sperm had to swim from male to female reproductive organs for fertilization. And the word for woman means a female of any age. Sperm have to swim from men to women reproductive organs to be fertilized.


Question: What swims from male to female reproductive organs in fertilization?\nOptions:\n- (A) ovaries\n- (B) barnacles\n- (C) fur seals\n- (D) eggs\n- (E) gastropod shells\n- (F) male gametes\n- (G) kinetic energy\n- (H) female gametes

Answer: (F)

Sperm had to swim from male to female reproductive organs for fertilization. Gametes in males are called sperm, and in women commonly referred to as eggs. Male gametes swim from male to female reproductive organs for fertilization.


Question: Sperm had to swim from what to what reproductive organs for zygotes to occur.\nOptions:\n- (A) barnacles\n- (B) male to female\n- (C) animals\n- (D) ocean water\n- (E) male to male\n- (F) mouth of rivers\n- (G) female to male\n- (H) female to female

Answer: (B)

Sperm had to swim from male to female reproductive organs for fertilization. If fertilization occurs, the fertilized eggs are now described as pre-embryos or zygotes. Sperm had to swim from male to female reproductive organs for zygotes to occur.


Question: Sperm had to swim from male to female what for fertilization?\nOptions:\n- (A) The flowers are pollinated\n- (B) seed dispersal\n- (C) that material's properties\n- (D) produce offspring\n- (E) Something coming from a gland\n- (F) A compound that donates proton\n- (G) metabolic reaction\n- (H) Organs within the body.

Answer: (H)

Sperm had to swim from male to female reproductive organs for fertilization. Within the body are the stomach and reproductive organs. Sperm had to swim from male to female organs within the body for fertilization.


Question: Organells found in the cells of plants and algae enable many things, including:\nOptions:\n- (A) movement\n- (B) photosyntehsis\n- (C) food and shelter\n- (D) sugar\n- (E) glucose\n- (F) organic\n- (G) Energy.\n- (H) survival

Answer: (B)

Chloroplasts are organelles that are found in the cells of plants and algae. Chloroplasts Chloroplasts serve as the site of photosynthesis. The site of photosynthesis in plant and algae cells is found within organelles.


Question: What organelles that are found in the cells of mosses.\nOptions:\n- (A) chloroplasts\n- (B) epidermal\n- (C) sensory neurons\n- (D) an organism's body\n- (E) more abundant\n- (F) Epidermis\n- (G) produce light\n- (H) it needs them

Answer: (A)

Chloroplasts are organelles that are found in the cells of plants and algae. Mosses are nonvascular plants. Chloroplasts are organelles that are found in the cells of mosses.


Question: What do animals do in the winter?\nOptions:\n- (A) Release energy\n- (B) running and lifting\n- (C) it keeps an organism warm\n- (D) adapt to warm weather\n- (E) adapt to extreme heat\n- (F) adapt to coolness\n- (G) shed fur\n- (H) by making heat

Answer: (F)

Animals adapt to cold temperatures. Temperatures are moderate in summer and COLD in winter. Animals adapt to the coolness in the winter.


Question: What do animals try do in winter?\nOptions:\n- (A) shed fur\n- (B) expand\n- (C) ligt\n- (D) rest\n- (E) adapt\n- (F) use an adapter\n- (G) survive\n- (H) die

Answer: (E)

Animals adapt to cold temperatures. And in winter it s very cold. In winter animals can adapt.


Question: Animals are _ things.\nOptions:\n- (A) insects\n- (B) invisible\n- (C) edible\n- (D) impossible\n- (E) protected\n- (F) sparkly\n- (G) living\n- (H) an object

Answer: (G)

Animals adapt to cold temperatures. Adaptation living things adapt to their environment. Animals are living things.


Question: What organism can adapt to cold temperatures?\nOptions:\n- (A) insects\n- (B) a fish\n- (C) sensory neurons\n- (D) sweating\n- (E) Sasquatches\n- (F) peachleaf willow\n- (G) athletes\n- (H) protect them

Answer: (E)

Animals adapt to cold temperatures. Sasquatches are obviously Earth-type animals. Sasquatches adapt to cold temperatures.


Question: What lacks walls and membranes?\nOptions:\n- (A) deserts\n- (B) flower cells\n- (C) viruses\n- (D) fungi\n- (E) tree cells\n- (F) bacteria\n- (G) plant cells\n- (H) alpacas

Answer: (C)

Viruses are not cells. Plant cells are surrounded by a cell membrane and a cell wall. Viruses do not have walls and membranes.


Question: Are there organisms simpler than cells.\nOptions:\n- (A) DNA\n- (B) plankton\n- (C) tiny\n- (D) algae\n- (E) amoeba\n- (F) RNA\n- (G) yes\n- (H) food

Answer: (G)

Viruses are not cells. Viruses Viruses are the simplest organisms known. Cells are not the simplest organisms.


Question: What is not a cell?\nOptions:\n- (A) all matter\n- (B) layers of fat\n- (C) illness\n- (D) bacteria\n- (E) influenza\n- (F) Leptospirosis\n- (G) an object\n- (H) hydrocarbons

Answer: (E)

Viruses are not cells. Influenza viruses mutate. Influenza is not a cell.


Question: What is not made up of cells?\nOptions:\n- (A) an object\n- (B) Veins and arteries.\n- (C) Tobacco mosaic\n- (D) an organism's body\n- (E) Conifers\n- (F) sensory neurons\n- (G) layers of fat\n- (H) the digestive system

Answer: (C)

Viruses are not cells. Viruses include the Tobacco Mosaic Virus. Tobacco mosaic is not made up of cells.


Question: Caffeine can cause \nOptions:\n- (A) congestion\n- (B) anemia\n- (C) constipation\n- (D) sweating\n- (E) hives\n- (F) energy usage\n- (G) dehydration\n- (H) heat energy

Answer: (G)

Caffeine is a central nervous system stimulant. Stimulants can cause overheating and dehydration. Caffeine can cause dehydration.


Question: What is a central nervous system stimulant?\nOptions:\n- (A) saccharose\n- (B) barbiturates\n- (C) cigarettes\n- (D) sweating\n- (E) muscle relaxants\n- (F) A Greek letter\n- (G) Decibels\n- (H) valium

Answer: (A)

Caffeine is a central nervous system stimulant. Likewise, the caffeine and saccharose stimulate the body's stimulation of serotonin. Saccharose is a central nervous system stimulant.


Question: What makes up the basic structure and function of all organisms found on earth?\nOptions:\n- (A) organs\n- (B) cells\n- (C) plants\n- (D) fungi\n- (E) bone structure\n- (F) trees\n- (G) Earth molecules\n- (H) Fat

Answer: (B)

Cells are the basic units of the structure and function of living things. An organism is a living thing. Cells are the basic units of the structure and function of organisms.


Question: What are cells the basic units of the structure and function of?\nOptions:\n- (A) humans\n- (B) Most plants\n- (C) animals\n- (D) Cell service\n- (E) Organisms\n- (F) mammals\n- (G) Lego cells\n- (H) Buildings

Answer: (E)

Cells are the basic units of the structure and function of living things. An organism is a living thing. Cells are the basic units of the structure and function of an organism.


Question: Cells make up plants and animals what?\nOptions:\n- (A) genes and DNA\n- (B) structure and function\n- (C) important habitats\n- (D) remains of prehistoric life\n- (E) function and beliefs\n- (F) function and viruses\n- (G) converting electricity to heat\n- (H) absorb light energy

Answer: (B)

Cells are the basic units of the structure and function of living things. Every living thing, animal and plant, are given a classification. Cells make up the structure and function of plants and animals.


Question: Which of the following sciences studies cells?\nOptions:\n- (A) sensory neurons\n- (B) Astronomy\n- (C) epidermal\n- (D) it needs them\n- (E) Physiology\n- (F) retina\n- (G) Anatomy\n- (H) Astrology

Answer: (E)

Cells are the basic units of the structure and function of living things. Physiology is the study of the function of living things. Physiology studies cells.


Question: What do cells make up of organisms?\nOptions:\n- (A) structure only\n- (B) function only\n- (C) structure and function\n- (D) members of their own species\n- (E) Something that is self-aware\n- (F) share properties\n- (G) desires and needs\n- (H) Most plants

Answer: (C)

Cells are the basic units of the structure and function of living things. An organism is a living thing or something that was once alive. Cells are the basic units of the structure and function of organisms.


Question: What is a type of the basic units of the structure and function of living things?\nOptions:\n- (A) sensory neurons\n- (B) osteogenic\n- (C) animals\n- (D) Chemical energy\n- (E) Energy\n- (F) trees\n- (G) ferns\n- (H) fur and fat

Answer: (B)

Cells are the basic units of the structure and function of living things. Osteogenic cell types are indicated. Osteogenic is a type of the basic units of the structure and function of living things.


Question: Where is brca2 located?\nOptions:\n- (A) retina\n- (B) lungs\n- (C) chromatic\n- (D) the eyes\n- (E) chromosome\n- (F) chromography\n- (G) chrome\n- (H) sensory neurons

Answer: (E)

Chromosomes contain genes, which code for proteins. Another gene, named BRCA2, has also been identified. Chromosomes contain BRCA2.


Question: Chromosomes contain genes, which code for\nOptions:\n- (A) Most plants\n- (B) Plants growth\n- (C) body tissue\n- (D) Animal survival\n- (E) animals\n- (F) Chemical energy\n- (G) peachleaf willow\n- (H) A Greek letter

Answer: (C)

Chromosomes contain genes, which code for proteins. Protein builds and repairs body tissue. Chromosomes contain genes, which code for body tissue.


Question: Protein is made from:\nOptions:\n- (A) Acids\n- (B) DNA code\n- (C) fur and fat\n- (D) insects\n- (E) animals\n- (F) Energy.\n- (G) Energy\n- (H) food

Answer: (B)

Chromosomes contain genes, which code for proteins. Information on DNA is organized into genes. DNA codes for proteins.


Question: Wetlands are a very important type of what?\nOptions:\n- (A) forest land\n- (B) allow growth\n- (C) Plants growth\n- (D) swamp\n- (E) storing water\n- (F) district\n- (G) animals\n- (H) ecosystem

Answer: (H)

Wetlands are extremely important biomes. Biomes are global ecosystems. Wetlands are extremely important ecosystems.


Question: Wetlands are extremely important \nOptions:\n- (A) water conservation\n- (B) global ecosystems\n- (C) Desert Ecosystem\n- (D) Terrestrial ecosystems\n- (E) important habitats\n- (F) the environment\n- (G) food and shelter\n- (H) Forest Ecosystems

Answer: (B)

Wetlands are extremely important biomes. Biomes are global ecosystems. Wetlands are extremely important global ecosystems.


Question: What are extremely important biomes?\nOptions:\n- (A) important habitats\n- (B) urban city\n- (C) remains of prehistoric life\n- (D) zoos\n- (E) water conservation\n- (F) Most plants\n- (G) manmade aqueducts\n- (H) marshes and swamps

Answer: (H)

Wetlands are extremely important biomes. Marshes and swamps are wetlands. Marshes and swamps are extremely important biomes.


Question: Which living creatures can be found in wetlands?\nOptions:\n- (A) Animals\n- (B) ferns\n- (C) ducks\n- (D) Oceans\n- (E) trees\n- (F) Rivers\n- (G) Lakes\n- (H) crocodiles

Answer: (A)

Wetlands are extremely important biomes. Animals live on the vegetation found in the biomes. Animals can be found to be living in wetlands.


Question: What are important biomes?\nOptions:\n- (A) important habitats\n- (B) fruits, vegetables and plants\n- (C) retaining heat\n- (D) stars, comets and planets\n- (E) cats, dogs and humans\n- (F) absorb light energy\n- (G) marshes, bogs, and swamps\n- (H) remains of prehistoric life

Answer: (G)

Wetlands are extremely important biomes. Palustrine wetlands include marshes, bogs, and swamps. Marshes, bogs and swamps are very important biomes.


Question: Wetlands are extremely important:\nOptions:\n- (A) environments\n- (B) food and shelter\n- (C) animals\n- (D) Plants growth\n- (E) water conservation\n- (F) important habitats\n- (G) homogenous\n- (H) storing water

Answer: (A)

Wetlands are extremely important biomes. Biomes are simply environments that have some things in common. Wetlands are extremely important environments.


Question: Eyes can detect images and see light using what?\nOptions:\n- (A) vibrations\n- (B) sight\n- (C) lenses\n- (D) sound\n- (E) Energy.\n- (F) Energy\n- (G) touch\n- (H) voltage

Answer: (B)

Sight is the ability to sense light, and the eye is the organ that senses light. Eyes detect light, organized into images that fall on the retina. Eyes can detect images and see light using sight.


Question: What does the organ of the eye sense?\nOptions:\n- (A) Gluons\n- (B) Photons\n- (C) Neutrons\n- (D) Energy\n- (E) heat\n- (F) distance\n- (G) sunlight\n- (H) Sound waves

Answer: (B)

Sight is the ability to sense light, and the eye is the organ that senses light. Light is made of photons . The eye is an organ that can sense photons.


Question: What does vision give you?\nOptions:\n- (A) ability to eat\n- (B) characteristics\n- (C) ability to taste\n- (D) ability to sense light\n- (E) ability to sense sound\n- (F) It gets more light\n- (G) Something that is self-aware\n- (H) Your sensory system picks it up

Answer: (D)

Sight is the ability to sense light, and the eye is the organ that senses light. Vision begins with sight. Vision is the ability to sense light and the eye is the organ that senses light.


Question: What is the process of organized images falling on the retina?\nOptions:\n- (A) slows\n- (B) collage\n- (C) a wave\n- (D) motion\n- (E) conjunction\n- (F) photochemistry\n- (G) Seesaw\n- (H) sight

Answer: (H)

Sight is the ability to sense light, and the eye is the organ that senses light. Eyes detect light, organized into images that fall on the retina. Sight is the process of organized images falling on the retina.


Question: Ozone depletion results in radiation levels that are highest when?\nOptions:\n- (A) middle of the day\n- (B) forest is destroyed\n- (C) late evening\n- (D) Under 32 degrees\n- (E) middle of the night\n- (F) Temperature changing\n- (G) Plant growth is reduced\n- (H) early morning

Answer: (A)

Ozone depletion results in higher levels of UV radiation reaching Earth. Solar UV radiation levels are highest during the middle of the day. Ozone depletion results in radiation levels that are highest during the middle of the day.


Question: The depletion of what results in higher levels of uv radiation reaching earth?\nOptions:\n- (A) O3\n- (B) O2\n- (C) oil\n- (D) pan\n- (E) h2o\n- (F) CO2\n- (G) DNA\n- (H) DDT

Answer: (A)

Ozone depletion results in higher levels of UV radiation reaching Earth. Ozone is represented chemically as O3. O3 depletion results in higher levels of UV radiation reaching Earth.


Question: What can slowly dissolve carbon in sedimentary rock?\nOptions:\n- (A) hydrocarbons\n- (B) acetic acid\n- (C) precipitation\n- (D) evaporation\n- (E) rivers and streams\n- (F) puddles\n- (G) ponds\n- (H) nitrogen

Answer: (E)

Flowing water can slowly dissolve carbon in sedimentary rock. Rivers and streams are bodies of fresh, flowing water. Rivers and streams can slowly dissolve carbon in sedimentary rock.


Question: Flowing water from a mountain can dissolve carbon in what kind of rock?\nOptions:\n- (A) magma\n- (B) loose soil\n- (C) loose dirt\n- (D) precipitation\n- (E) pumice\n- (F) limestone\n- (G) wind and rain\n- (H) andesite

Answer: (F)

Flowing water can slowly dissolve carbon in sedimentary rock. Limestone is a type of sedimentary rock. Flowing water can slowly dissolve carbon in limestone.


Question: Flowing water can slowly _ carbon in limestone.\nOptions:\n- (A) alter\n- (B) destroy\n- (C) erode\n- (D) allow growth\n- (E) dissolve\n- (F) heat\n- (G) a solute\n- (H) rain

Answer: (E)

Flowing water can slowly dissolve carbon in sedimentary rock. Limestone is an organic, sedimentary rock. Flowing water can slowly dissolve carbon in limestone.


Question: What die quickly if a stroke occurs?\nOptions:\n- (A) a fish\n- (B) animals\n- (C) brain cells\n- (D) organs\n- (E) critical organs\n- (F) protons\n- (G) neutrons\n- (H) bones

Answer: (C)

Brain cells die quickly if their oxygen supply is cut off. If the oxygen supply to the brain is cut off, a stroke can occur. Brain cells die quickly if a stroke occurs.


Question: What will die without a supply of blood?\nOptions:\n- (A) plants\n- (B) organs\n- (C) brain cells\n- (D) athletes\n- (E) humans\n- (F) species\n- (G) critical organs\n- (H) mushrooms

Answer: (C)

Brain cells die quickly if their oxygen supply is cut off. Here, the lungs supply the blood with oxygen. Brain cells die quickly if their blood supply is cut off.


Question: What happens to brain cells when the air supply is cut off?\nOptions:\n- (A) strangulation\n- (B) breathe\n- (C) lead poisoning\n- (D) death\n- (E) hippocampus\n- (F) painful\n- (G) loss\n- (H) die

Answer: (D)

Brain cells die quickly if their oxygen supply is cut off. Air contains oxygen. Brain cells die quickly if their air supply is cut off.


Question: Prokaryotes lack regions that do not code for proteins, while this type of living being has them:\nOptions:\n- (A) bioaerosols\n- (B) layers of fat\n- (C) orchids\n- (D) animals\n- (E) critical organs\n- (F) sensory neurons\n- (G) eukaryotes\n- (H) it needs them

Answer: (G)

Introns are regions that do not code for proteins. Prokaryotes lack introns, whereas eukaryotes contain introns. Prokaryotes lack regions that do not code for proteins, while eukaryotes do have them.


Question: Introns are areas that\nOptions:\n- (A) it keeps an organism warm\n- (B) Plant reproduction\n- (C) the wearing away of rock\n- (D) do not code for protein\n- (E) Something coming from a gland\n- (F) Plant growth is reduced\n- (G) allow growth\n- (H) produce offspring

Answer: (D)

Introns are regions that do not code for proteins. An area is a rectangular region of cells. Introns are areas that do not code for proteins.


Question: What passes traits from parents to offspring?\nOptions:\n- (A) Birth certificate\n- (B) Lactation\n- (C) p53\n- (D) HIV\n- (E) RNA\n- (F) Pedigree\n- (G) SNPs\n- (H) DNA

Answer: (H)

Characteristics that are encoded in DNA are called genetic traits. DNA is used to transmit characteristics from parents to offspring. DNA passes traits from parents to offspring.


Question: Intelligence is primarily encoded in what?\nOptions:\n- (A) Man\n- (B) RNA\n- (C) SNPs\n- (D) p53\n- (E) deep set eyes\n- (F) reading glasses\n- (G) DNA\n- (H) python code

Answer: (G)

Characteristics that are encoded in DNA are called genetic traits. Intelligence is primarily a genetically inherited trait. Intelligence is primarily encoded in DNA.


Question: How long can antibodies protect the body?\nOptions:\n- (A) As long as antibodies survive\n- (B) Slowing the transfer of heat\n- (C) For a set time\n- (D) by keeping them warm\n- (E) it protects them\n- (F) Into elderly years\n- (G) As long as the human survives\n- (H) A compound that donates proton

Answer: (A)

Passive immunity lasts only as long as the antibodies survive in body fluids. Antibodies are administered to the patient in a process called passive immunization. Antibodies are administered to patients for protection but it only helps as long as the antibodies survive in body fluids.


Question: What does a pregnanct woman pass on to the fetus?\nOptions:\n- (A) Leptospirosis\n- (B) Energy.\n- (C) antibodies\n- (D) education\n- (E) embryo\n- (F) parasites\n- (G) zygotes\n- (H) fever

Answer: (C)

Passive immunity lasts only as long as the antibodies survive in body fluids. Immunization in a pregnant woman produces both active and passive immunity in the fetus. A pregnant woman will pass antibodies to the fetus.


Question: What do muscle fibers need to do to enable movement?\nOptions:\n- (A) Bend\n- (B) strength\n- (C) exercise\n- (D) ligt\n- (E) It expands\n- (F) shorten\n- (G) Vibrates\n- (H) stay warm

Answer: (F)

Muscle contraction occurs when muscle fibers get shorter. Movement is based on the contraction of muscles. Movement happens when muscle fibers get shorter.


Question: Phytoplankton have a clever way of making food from what?\nOptions:\n- (A) sunlight energy\n- (B) water energy\n- (C) heat energy\n- (D) heat produced\n- (E) chemical energy\n- (F) mechanical energy\n- (G) organic matter\n- (H) refraction of light

Answer: (A)

Phytoplankton are bacteria and algae that use sunlight to make food. Plants have a very clever way of using the energy from sunlight to make their food. Phytoplankton have a clever way of making food from sunlight energy.


Question: Most _ feed on bacteria and algae that use sunlight to make food.\nOptions:\n- (A) Energy\n- (B) Lobsters\n- (C) Most plants\n- (D) Seaweed\n- (E) Starfish\n- (F) plant life\n- (G) Copepods\n- (H) energy usage

Answer: (G)

Phytoplankton are bacteria and algae that use sunlight to make food. Most copepods feed on phytoplankton. Most copepods feed on bacteria and algae that use sunlight to make food.


Question: What are bacteria and algae that use sunlight to make food?\nOptions:\n- (A) birds\n- (B) carnivorous organisms\n- (C) Transfers energy\n- (D) competing for resources\n- (E) planktonic plants\n- (F) By wind and rain\n- (G) fish\n- (H) Chemical energy

Answer: (E)

Phytoplankton are bacteria and algae that use sunlight to make food. Planktonic plants are called phytoplankton. Planktonic plants are bacteria and algae that use sunlight to make food.


Question: What do phytoplankton and algae need in order to make energy?\nOptions:\n- (A) water\n- (B) glucose\n- (C) food\n- (D) sunlight\n- (E) bacteria\n- (F) Light\n- (G) adding heat\n- (H) The Sun

Answer: (D)

Phytoplankton are bacteria and algae that use sunlight to make food. Food gives energy. Phytoplankton and bacteria are algae that use sunlight to make energy.


Question: Alternative instructions for a single protein are encoded on:\nOptions:\n- (A) alleles\n- (B) Acids\n- (C) PDAs\n- (D) nucleus\n- (E) junk DNA\n- (F) A computer\n- (G) inheritance\n- (H) Tail

Answer: (A)

Most genes contain the instructions for a single protein. Alleles are alternative forms of a gene. Alleles can contain instructions for making alternative versions of the same single protein.


Question: What can dna contain the instructions for?\nOptions:\n- (A) keeps the organism warm\n- (B) Something to move\n- (C) Plant reproduction\n- (D) a single protein\n- (E) A computer\n- (F) Animal survival\n- (G) survival\n- (H) an engine

Answer: (D)

Most genes contain the instructions for a single protein. Genes are made of DNA, the substrate of hereditary information. DNA can contain the instructions for a single protein.


Question: What do mutations do to dna?\nOptions:\n- (A) It expands\n- (B) Damages them\n- (C) negative\n- (D) Moisturize it.\n- (E) Help it.\n- (F) Destroy it.\n- (G) It decreases\n- (H) Change it.

Answer: (H)

Mutations may change the structure of a chromosome or just change a single nucleotide. DNA is made up of nucleotides. Mutations change DNA.


Question: What is a potential outcome of genetic mutation?\nOptions:\n- (A) HIV\n- (B) albino\n- (C) anemia\n- (D) pizza eating turtles\n- (E) genealogy\n- (F) SNPs\n- (G) biology\n- (H) death

Answer: (F)

Mutations may change the structure of a chromosome or just change a single nucleotide. SNPs involve polymorphisms at the single nucleotide level. Mutations may change the structure of a chromosome or just cause SNPs.


Question: Alterations in genetic information may change a chromosome's structure or one\nOptions:\n- (A) nitrogen\n- (B) harm them\n- (C) Plants growth\n- (D) Damages them\n- (E) spectrum\n- (F) nuclear waste\n- (G) nucelotide\n- (H) nitrate

Answer: (G)

Mutations may change the structure of a chromosome or just change a single nucleotide. Mutations are changes in genetic information. Alterations in genetic information may change the structure of a chromosome or just a single nucleotide.


Question: Changing the structure of a chromosome can be what to an organsim?\nOptions:\n- (A) massive damage\n- (B) mechanical\n- (C) beneficial\n- (D) harm them\n- (E) negative\n- (F) dangerous\n- (G) homogenous\n- (H) Damages them

Answer: (C)

Mutations may change the structure of a chromosome or just change a single nucleotide. Most mutations are beneficial to the organism. Changing the structure of a chromosome can be beneficial to the organism.


Question: Which process of gene abnormalities can mutations be detected?\nOptions:\n- (A) A computer\n- (B) ligt\n- (C) analysis\n- (D) radiation\n- (E) electrically\n- (F) negative\n- (G) Microscope\n- (H) illness

Answer: (C)

Mutations may change the structure of a chromosome or just change a single nucleotide. Chromosomal abnormalities can be examined by chromosome analysis. Mutations can be detected by analysis on gene abnormalities.


Question: What uses sounds, chemicals and visual cues?\nOptions:\n- (A) bees\n- (B) seaweed\n- (C) running\n- (D) monkeys\n- (E) humans\n- (F) germs\n- (G) athletes\n- (H) coral

Answer: (D)

Animals can communicate with sounds, chemicals, or visual cues. Monkeys are wild animals. Monkeys communicate with sounds, chemicals or visual cues.


Question: What are in the animal kindgom?\nOptions:\n- (A) seeds\n- (B) edible\n- (C) parasites\n- (D) bacteria\n- (E) fungi\n- (F) humans\n- (G) people\n- (H) bees

Answer: (F)

Animals are a kingdom of multicellular eukaryotes. Humans, of course, are an example of a multicellular eukaryote. Humans are, of course, in the animal kingdom.


Question: The majority of multicellular eukaryotes are:\nOptions:\n- (A) Most plants\n- (B) infectious\n- (C) viruses\n- (D) bacteria\n- (E) Absorb light\n- (F) insects\n- (G) important habitats\n- (H) invertebrates

Answer: (H)

Animals are a kingdom of multicellular eukaryotes. Invertebrates are the majority of the animal kingdom. The majority of multicellular eukaryotes are invertebrates.


Question: What group makes up the majority of multicellular eukaryotes?\nOptions:\n- (A) Most plants\n- (B) solid, liquid, gas\n- (C) orchids\n- (D) Plant reproduction\n- (E) Veins and arteries.\n- (F) passenger pigeons\n- (G) Invertebrates\n- (H) insects

Answer: (G)

Animals are a kingdom of multicellular eukaryotes. Invertebrates make up the majority of the animal Kingdome. Invertebrates make up the majority of multicellular eukaryotes.


Question: What is needed from cells for phosphatases to keep the proper ph?\nOptions:\n- (A) plasma\n- (B) secretion of bases only\n- (C) secretion of proteins\n- (D) metabolic reaction\n- (E) it helps plants in growing\n- (F) Positive charges\n- (G) Transfers energy\n- (H) secretion of acids and bases

Answer: (H)

Cells secrete acids and bases to maintain the proper pH for enzymes to work. Phosphatases are enzymes that remove phosphates from other enzymes. Cells secrete acids and bases to keep the proper pH for phosphatases to work properly.


Question: What do cells secrete to maintain the proper ph for enzymes to work?\nOptions:\n- (A) Energy\n- (B) Chemical energy\n- (C) water conservation\n- (D) sweating\n- (E) heat energy\n- (F) aqueous solution\n- (G) Organic compounds\n- (H) electrolytes

Answer: (H)

Cells secrete acids and bases to maintain the proper pH for enzymes to work. Acids and bases are electrolytes. Cells secrete electrolytes to maintain the proper pH for enzymes to work.


Question: A type of resting cell from what type of organism is often found in soil and water?\nOptions:\n- (A) fungi\n- (B) creature\n- (C) organic thing\n- (D) entity\n- (E) bacteria\n- (F) lmestone\n- (G) Most plants\n- (H) vegetation

Answer: (E)

Endospores are commonly found in soil and water. Endospore-forming bacteria produce a unique resting cell called an endospore . Bacterial resting cells are often found in soil and water.


Question: What is the process by which organisms give rise to their young?\nOptions:\n- (A) Summer\n- (B) cell division\n- (C) autumn\n- (D) Plants growth\n- (E) peachleaf willow\n- (F) ejaculation\n- (G) reproduction\n- (H) mating rituals

Answer: (G)

Reproduction is the process by which organisms give rise to offspring. Fetus is Latin for offspring or young one. Reproduction is the process by which organisms give rise to their young.


Question: How do organisms give rise to children?\nOptions:\n- (A) mitosis\n- (B) reproduction\n- (C) reproductive isolation\n- (D) Plants growth\n- (E) it needs them\n- (F) litter\n- (G) by indirect light\n- (H) replenishing

Answer: (B)

Reproduction is the process by which organisms give rise to offspring. Seed refers to offspring, children. Organisms give rise to children by reproduction.


Question: Why does life continue?\nOptions:\n- (A) to use resources\n- (B) organisms produce offspring.\n- (C) sub-units of species\n- (D) things don't die\n- (E) the Earth being tilted\n- (F) production of energy\n- (G) to keep going\n- (H) by keeping them warm

Answer: (B)

Reproduction is the process by which organisms give rise to offspring. Life continues because of reproduction. Life continues because organisms give rise to offspring.


Question: The next generation of an organism rises via:\nOptions:\n- (A) Plants growth\n- (B) spontaneous generation\n- (C) reproduction\n- (D) The Sun\n- (E) revolution\n- (F) sun's heat\n- (G) heat energy\n- (H) unions

Answer: (C)

Reproduction is the process by which organisms give rise to offspring. Then, the lowest energy offspring are used as parents for the next generation. Reproduction is the process by which organisms give rise to the next generation.


Question: What can happen during the reproduction process?\nOptions:\n- (A) tree falls\n- (B) Mutations\n- (C) Plants growth\n- (D) movement\n- (E) competition\n- (F) adding heat\n- (G) contamination\n- (H) Dehydration

Answer: (B)

Reproduction is the process by which organisms give rise to offspring. Mutations are sources of variations in offspring. Mutations can occur during the reproduction process.


Question: Creatures with six legs may live in what?\nOptions:\n- (A) space centers\n- (B) ocean water\n- (C) salt and water.\n- (D) large colonies\n- (E) small pendants\n- (F) loose soil\n- (G) distant moons\n- (H) body water

Answer: (D)

Insects may live in large colonies and have complex social behaviors. Insects have six legs. Creatures with six legs may live in large colonies.


Question: Arthropods with what may live in large colonies and have complex social behaviors.\nOptions:\n- (A) fur\n- (B) gills\n- (C) animals\n- (D) complex\n- (E) Wasps\n- (F) vertebrae\n- (G) Flowers\n- (H) wings

Answer: (H)

Insects may live in large colonies and have complex social behaviors. Insects are the only arthropod to have wings. Arthropods with wings may live in large colonies and have complex social behaviors.