Question: What allows for an organism to create young by sexual and asexual means?\nOptions:\n- (A) spread flower seeds\n- (B) remains of prehistoric life\n- (C) peachleaf willow\n- (D) photosynthesis\n- (E) mate with females\n- (F) members of their own species\n- (G) A compound that donates proton\n- (H) alternation of generations

Answer: (H)

Alternation of generations allows for both asexual and sexual reproduction. Reproduction Organisms create young of their species by reproduction. Alternation of generations allows for creating young by asexual and sexual means.


Question: Which of the following organisms would reproduce sexually and not asexually?\nOptions:\n- (A) Flowers\n- (B) plants\n- (C) amoeba\n- (D) bacteria\n- (E) fungus\n- (F) snail\n- (G) fungi\n- (H) insects

Answer: (F)

Mollusks reproduce sexually. Mollusks in the diorama include snails and clams. Snails reproduce sexually.


Question: How do squids reproduce?\nOptions:\n- (A) while flying\n- (B) seeds\n- (C) split in two\n- (D) electrically\n- (E) sexually\n- (F) asexually\n- (G) movement\n- (H) fertile

Answer: (E)

Mollusks reproduce sexually. Interestingly, a squid is also a mollusk. Squids reproduce sexually.


Question: How does a squid produce?\nOptions:\n- (A) Energy.\n- (B) photons\n- (C) voltage\n- (D) sexually\n- (E) Energy\n- (F) bioaerosols\n- (G) waves\n- (H) food

Answer: (D)

Mollusks reproduce sexually. Interestingly, a squid is also a mollusk. Squids produce sexually.


Question: Abalone is an example of an animal that:\nOptions:\n- (A) refract or absorb.\n- (B) They have webbed feet\n- (C) important habitats\n- (D) Plant growth is reduced\n- (E) it keeps an organism warm\n- (F) reproduces sexually\n- (G) decreases its bodily water\n- (H) four limbs

Answer: (F)

Mollusks reproduce sexually. An abalone is a shellfish or mollusk. Abalone reproduce sexually.


Question: What do all cells share?\nOptions:\n- (A) basic function\n- (B) Veins and arteries.\n- (C) exact structure\n- (D) how they look\n- (E) energy usage\n- (F) Electrical energy\n- (G) types of protein\n- (H) Chemical energy

Answer: (A)

All cells share some of the same structures and basic functions. Biological structures are too complex. Cells are complex but all share basic functions.


Question: The basic functioning unit of life all share the same what?\nOptions:\n- (A) structure\n- (B) four limbs\n- (C) organ\n- (D) Chlorophyll\n- (E) Energy\n- (F) layers of fat\n- (G) health\n- (H) Energy.

Answer: (A)

All cells share some of the same structures and basic functions. Cells are also the basic functioning unit of life. The basic functioning unit of life all share the same structures.


Question: What is one thing studied in immunology?\nOptions:\n- (A) illness\n- (B) antigens\n- (C) humanism\n- (D) health\n- (E) philosophy\n- (F) resistance\n- (G) symbology\n- (H) fever

Answer: (B)

Antigens are molecules that the immune system recognizes as foreign to the body. Immunology is the study of the immune system. Immunology includes the study of antigens.


Question: Antigens are molecules that prompt the what of antibodies?\nOptions:\n- (A) termination\n- (B) failure\n- (C) humans\n- (D) decrease\n- (E) production\n- (F) anemia\n- (G) rapid expansion\n- (H) kinetic

Answer: (E)

Antigens are molecules that the immune system recognizes as foreign to the body. Antigens prompt the body to produce antibodies. Antigens are molecules that prompt the production of antibodies.


Question: What are molecules that the immune system recognizes as foreign to the physical entity?\nOptions:\n- (A) bacteria\n- (B) proteins\n- (C) antibodies\n- (D) Allergies\n- (E) negative\n- (F) immunities\n- (G) parasites\n- (H) antigens

Answer: (H)

Antigens are molecules that the immune system recognizes as foreign to the body. Bodies are physical entities. Antigens are molecules that the immune system recognizes as foreign to the physical entity.


Question: What are molecules that are recognized by the body as alien?\nOptions:\n- (A) parasites\n- (B) Acids\n- (C) heat or cold\n- (D) negative\n- (E) antigone\n- (F) antibodies\n- (G) antigens\n- (H) blood cells

Answer: (G)

Antigens are molecules that the immune system recognizes as foreign to the body. Yes, foreigners are called Aliens. Antigens are molecules that the immune system recognizes as alien to the body.


Question: Heavy metals are _.\nOptions:\n- (A) emissions\n- (B) dangerous\n- (C) bent\n- (D) homogenous\n- (E) antigens\n- (F) vehicles\n- (G) fossil fuels\n- (H) heat energy

Answer: (E)

Antigens are molecules that the immune system recognizes as foreign to the body. Heavy metals are, in general, foreign to the body. Heavy metals are antigens.


Question: What does population size influence on a species?\nOptions:\n- (A) Quality of life\n- (B) their migration pattern\n- (C) their home\n- (D) characteristics\n- (E) Plant reproduction\n- (F) their chance of living\n- (G) their food preference\n- (H) metabolic reaction

Answer: (F)

Population size influences the chances of a species surviving. Survival is to live, to live means hope. Population size influences the chances of a species living.


Question: What can help clients to heal?\nOptions:\n- (A) high pitched tones\n- (B) pressure on the body\n- (C) Veins and arteries.\n- (D) looseness of dirt or compost\n- (E) reusing materials\n- (F) recovery time from fatigue\n- (G) smelling pungent smells\n- (H) staring at bright objects

Answer: (B)

Touch is the ability to sense pressure. Therapeutic touch can activate the clients inherent healing ability. The ability to sense pressure on the body can help clients to heal.


Question: What is produced when plastic is made out of petroleum?\nOptions:\n- (A) dangerous\n- (B) bioaerosols\n- (C) emissions\n- (D) hydrocarbons\n- (E) pollution\n- (F) heat produced\n- (G) Pesticides\n- (H) heat energy

Answer: (E)

Plastics are made from petroleum and produce toxic waste. Pollution issues include toxic waste disposal. Plastics are made from petroleum and produce pollution.


Question: This helps with sensing and maintaining body position:\nOptions:\n- (A) lightheaded\n- (B) sweating\n- (C) inner ear\n- (D) cochlea\n- (E) four limbs\n- (F) nerves\n- (G) Riding a bike\n- (H) dizzy

Answer: (C)

Balance is the ability to sense and maintain body position. Another part of the inner ear is used for balance. The inner ear helps with sensing and maintaining body position.


Question: What can maintaining body position help you to do?\nOptions:\n- (A) work\n- (B) play\n- (C) move\n- (D) live\n- (E) rest\n- (F) Lift\n- (G) ski\n- (H) fly

Answer: (G)

Balance is the ability to sense and maintain body position. Balance is important in skiing and balance is important in life. In order to ski, it is necessary to maintain body position.


Question: What is proprioception part of?\nOptions:\n- (A) tail fins\n- (B) genus\n- (C) fur seals\n- (D) animals\n- (E) athletes\n- (F) movement\n- (G) humans\n- (H) balance

Answer: (H)

Balance is the ability to sense and maintain body position. Another name for sense of body position is proprioception. Balance involves proprioception ability.


Question: What is critical?\nOptions:\n- (A) Balance\n- (B) oxygen\n- (C) recovery\n- (D) Electrical\n- (E) heat\n- (F) sun's heat\n- (G) stay warm\n- (H) stamina

Answer: (A)

Balance is the ability to sense and maintain body position. Body position is critical. Balance is critical.


Question: What provides protection for internal organs?\nOptions:\n- (A) fur\n- (B) cuticle\n- (C) ribs\n- (D) skin\n- (E) plasma\n- (F) brain\n- (G) coats\n- (H) fat

Answer: (C)

Bone provides protection for soft tissues and internal organs. Vertebrae, ribs, appendages, and the jaw are endoskeletal bone. Ribs provide protection for internal organs.


Question: What provides protection for soft tissues and internal organs?\nOptions:\n- (A) fur and fat\n- (B) eye color\n- (C) peachleaf willow\n- (D) synapses\n- (E) a cuticle\n- (F) layers of fat\n- (G) nerves\n- (H) the skeleton

Answer: (H)

Bone provides protection for soft tissues and internal organs. Bone is the substance that forms the skeleton of the body. The skeleton provides protection for soft tissues and internal organs.


Question: Muscle and internal organs are protected by:\nOptions:\n- (A) immunization\n- (B) fur\n- (C) fat\n- (D) bone\n- (E) hair\n- (F) skin\n- (G) defense\n- (H) copper

Answer: (D)

Bone provides protection for soft tissues and internal organs. Soft tissue refers to the soft connective or supporting tissues, such as muscle. Bone provides protection for muscles and internal organs.


Question: An animal's outer shell protects internal organs and:\nOptions:\n- (A) food and shelter\n- (B) epidermal\n- (C) Epidermis\n- (D) all matter\n- (E) soft tissues\n- (F) alveoli\n- (G) warmth\n- (H) layers of fat

Answer: (E)

Bone provides protection for soft tissues and internal organs. Bones provide an outer shell to protect our internal organs. Soft tissues and internal organs need an outer shell for protection.


Question: What does bone provide protection for in humans?\nOptions:\n- (A) epidermal\n- (B) during the day\n- (C) fur and fat\n- (D) health\n- (E) layers of fat\n- (F) staying warm\n- (G) The heart.\n- (H) When it's cold

Answer: (G)

Bone provides protection for soft tissues and internal organs. For the heart is the chief organ of the body and rules it. Bone provides protection for the heart.


Question: The penetration of the egg by a sperm takes place where?\nOptions:\n- (A) salt and water.\n- (B) an area swollen with pus\n- (C) By wind and rain\n- (D) outside the body\n- (E) Earth revolving around the sun\n- (F) inside the prostate\n- (G) inside the female organism\n- (H) inside the male organism

Answer: (G)

Fertilization takes place inside the female organism. Fertilization is the penetration of the egg by a sperm. The penetration of the egg by a sperm takes place inside the female organism.


Question: Where does human fertilization naturally take place?\nOptions:\n- (A) hard shelled egg\n- (B) petri dish\n- (C) bushes\n- (D) man\n- (E) Earth\n- (F) eggs\n- (G) woman\n- (H) orchids

Answer: (G)

Fertilization takes place inside the female organism. Fatty tissue in a woman's body produces female hormones. Fertilization takes place inside a woman.


Question: What animal gives live birth?\nOptions:\n- (A) humans\n- (B) goats\n- (C) alpacas\n- (D) rabbit\n- (E) babies\n- (F) fur seals\n- (G) mammals\n- (H) sharks

Answer: (H)

Fertilization takes place inside the female organism. Sharks have internal fertilization, and most give birth to live young. The female shark will give live birth.


Question: What can liquid waste be?\nOptions:\n- (A) gas\n- (B) Gaseous\n- (C) Solid\n- (D) Acidic\n- (E) acid rain\n- (F) expelled\n- (G) Static\n- (H) dangerous

Answer: (D)

Urine is the liquid waste product of the body that is excreted by the urinary system. Acid urine is usually darker thatn alkaline urine. Liquid waste can be acidic.


Question: Urine is a product of what organ of the body that is excreted by the urinary system?\nOptions:\n- (A) bowel\n- (B) epidermal\n- (C) bladder\n- (D) alveoli\n- (E) lungs\n- (F) urine\n- (G) mammals\n- (H) NaCl

Answer: (C)

Urine is the liquid waste product of the body that is excreted by the urinary system. Liquid waste is put into the bladder. Urine is the waste product in the bladder that is excreted by the urinary system.


Question: What is a waste product of the body that is excreted by the urinary system?\nOptions:\n- (A) potash\n- (B) food\n- (C) CO 2\n- (D) sugar\n- (E) urea\n- (F) liquid\n- (G) H 2 O\n- (H) sulfur

Answer: (E)

Urine is the liquid waste product of the body that is excreted by the urinary system. Mammals excrete urea in the watery form of urine . Urea is a waste product of the body that is excreted by the urinary system.


Question: Secondary vascular tissues are employed by bamboo and what other kind of tree?\nOptions:\n- (A) plants\n- (B) ferns\n- (C) grass\n- (D) coniferous\n- (E) Trees\n- (F) elms\n- (G) palm\n- (H) deciduous

Answer: (G)

Secondary growth forms secondary vascular tissues and bark. Some, such as bamboo and palm trees, have secondary growth. Secondary vascular tissues are employed by bamboo and palm trees.


Question: What forms secondary vascular tissues in trees?\nOptions:\n- (A) allow growth\n- (B) primary growth\n- (C) secondary growth\n- (D) In their leaves\n- (E) end growth\n- (F) mating\n- (G) Most plants\n- (H) shrub beds

Answer: (C)

Secondary growth forms secondary vascular tissues and bark. All trees have bark. Trees secondary growth forms secondary vascular tissues.


Question: What do plants build their cell walls from?\nOptions:\n- (A) By wind and rain\n- (B) Deposition\n- (C) Deposition.\n- (D) algae\n- (E) Chemical energy\n- (F) plant wall\n- (G) plant material\n- (H) polysaccharides

Answer: (H)

Plants use cellulose for their cell walls. Another important polysaccharide is cellulose. Plants use a polysaccharide for their cell walls.


Question: What kind of organism use cellulose for their cell walls?\nOptions:\n- (A) parasites\n- (B) animals\n- (C) Conifers\n- (D) fungus\n- (E) vegetation\n- (F) producers\n- (G) amoeba\n- (H) viruses

Answer: (F)

Plants use cellulose for their cell walls. If the plant is green, it is a producer. Producers use cellulose for their cell walls.


Question: What are cell walls made of?\nOptions:\n- (A) fossils\n- (B) peat\n- (C) moss\n- (D) cations\n- (E) Carbon\n- (F) Fiber\n- (G) Fungi\n- (H) sodium

Answer: (F)

Plants use cellulose for their cell walls. Basically, fiber is cellulose . Cells walls are fiber.


Question: What are the affects of burning fuel on human health?\nOptions:\n- (A) emissions\n- (B) They aid lung health.\n- (C) direct damage to the lungs\n- (D) They are a hazard.\n- (E) The affects are mildly healthy\n- (F) The fuel burns clean.\n- (G) Greenhouse gases\n- (H) Global warming

Answer: (D)

Carbon monoxide is a gas produced by furnaces and other devices that burn fuel. Carbon Monoxide Carbon monoxide is a health hazard. Furnaces and other devices that burn fuel are health hazards.


Question: What gas is produced by burning propane?\nOptions:\n- (A) Greenhouse gases\n- (B) Sulfur dioxide\n- (C) gasoline\n- (D) Carbon monoxide\n- (E) hydrocarbons\n- (F) carbon dioxide\n- (G) dangerous\n- (H) heating liquids

Answer: (D)

Carbon monoxide is a gas produced by furnaces and other devices that burn fuel. Cabins have wood burning stoves and propane furnaces. Carbon monoxide is a gas produced by burning propane.


Question: Carbon monoxide, a product of furnaces and engines, is a:\nOptions:\n- (A) acid\n- (B) CO2\n- (C) kill\n- (D) harm\n- (E) gas\n- (F) form\n- (G) CO 2\n- (H) HPV

Answer: (E)

Carbon monoxide is a gas produced by furnaces and other devices that burn fuel. Fuel is burned inside the engine. Carbon monoxide is a gas produced by furnaces and other engines.


Question: Producers use energy and inorganic molecules for what?\nOptions:\n- (A) neutralizing threats\n- (B) dismissal of nutrients\n- (C) heat produced\n- (D) Transfers energy\n- (E) retention of nutrients\n- (F) decomposition\n- (G) agriculture\n- (H) iron in water

Answer: (E)

Producers use energy and inorganic molecules to make food. Food preparation for retention of nutrients is included. Producers use energy and inorganic molecules for the retention of nutrients.


Question: What can use energy in order to make food for itself and others?\nOptions:\n- (A) organisms\n- (B) mollusks\n- (C) trees\n- (D) microbes\n- (E) seeds\n- (F) chlorophyll\n- (G) plants\n- (H) animals

Answer: (G)

Producers use energy and inorganic molecules to make food. If the plant is green, it is a producer. Plants use energy to make food.


Question: Some producers use what physical feature to use energy and inorganic molecules?\nOptions:\n- (A) leaves\n- (B) sunlight\n- (C) solar energy\n- (D) sun\n- (E) resevoir\n- (F) chemicals\n- (G) mitosis\n- (H) trees

Answer: (A)

Producers use energy and inorganic molecules to make food. Leaves make food for the plant. Some producers have leaves to help use energy and inorganic molecules.


Question: What process helps provide resources for producers to create food?\nOptions:\n- (A) animals\n- (B) Exfoliation\n- (C) decomposition\n- (D) mastication\n- (E) recycling\n- (F) reproduction\n- (G) ejaculation\n- (H) Converting waste.

Answer: (C)

Producers use energy and inorganic molecules to make food. Decomposition is the breakdown of organic molecules into inorganic molecules. Decomposition provides resources for producers to create food.


Question: What use energy and minerals to make food?\nOptions:\n- (A) trees\n- (B) plant life\n- (C) humans\n- (D) producers\n- (E) bears\n- (F) elephants\n- (G) Most plants\n- (H) ferns

Answer: (D)

Producers use energy and inorganic molecules to make food. Minerals are inorganic substances. Producers use energy and minerals to make food.


Question: What do substances in the pituitary control?\nOptions:\n- (A) To keep their body heat.\n- (B) sweating\n- (C) endocrine glands\n- (D) temperature\n- (E) preventing heat transfer\n- (F) an organism's body\n- (G) movement\n- (H) Veins and arteries.

Answer: (C)

Most pituitary hormones control other endocrine glands. Hormone therapy Hormones are substances that occur naturally in the body. Substances in the pituitary control the endocrine glands.


Question: What do most pituitary hormones control?\nOptions:\n- (A) Something that is self-aware\n- (B) Molecular kinetic energy\n- (C) Vomiting reflex\n- (D) Animal survival\n- (E) Veins and arteries.\n- (F) an organism's body\n- (G) metabolic reaction\n- (H) Hormone producing structures.

Answer: (H)

Most pituitary hormones control other endocrine glands. Endocrine Glands Endocrine glands are the hormone producing structures of the body. Most pituitary hormones control other hormone producing structures of the body.


Question: Where can cells bound by antibodies more likely be found?\nOptions:\n- (A) critical organs\n- (B) colder and wetter\n- (C) the environment\n- (D) Earth orbiting the Sun\n- (E) Veins and arteries.\n- (F) epidermis and dermis\n- (G) on cancer cells\n- (H) the skin

Answer: (G)

Antigens are found on cancer cells and the cells of transplanted organs. Antibodies bound to antigen are then measured by RCAT-based amplification of the associated DNA tag. Cells bound by antibodies can be found on cancer cells and the cells of transplanted organs.


Question: Plants are multicellular eukaryotes with what walls?\nOptions:\n- (A) A solid geometric shape\n- (B) preventing heat transfer\n- (C) bone and skin\n- (D) starch and bone\n- (E) food and shelter\n- (F) starch and protein\n- (G) homogenous\n- (H) starch and cellulose

Answer: (H)

Plants are multicellular eukaryotes with cell walls made of cellulose. For example, the walls of plant cells are made in large part of starch and cellulose . Plants are multicellular eukaryotes with starch and cellulose walls.


Question: What are flower cell walls made of?\nOptions:\n- (A) cellular\n- (B) lmestone\n- (C) cellulitis\n- (D) strong\n- (E) cellulose\n- (F) cellulite\n- (G) heat energy\n- (H) acetic acid

Answer: (E)

Plants are multicellular eukaryotes with cell walls made of cellulose. Flowers are plant organs of reproduction. Flowers are multicellular eukaryotes with cell walls made cellulose.


Question: Plants cell walls are made of \nOptions:\n- (A) fiber\n- (B) keratin\n- (C) alveoli\n- (D) cations\n- (E) matter\n- (F) CO 2\n- (G) porous\n- (H) Cane.

Answer: (A)

Plants are multicellular eukaryotes with cell walls made of cellulose. Basically, fiber is cellulose . Plants cell walls are made of fiber.


Question: Many consumers feed at more than one what?\nOptions:\n- (A) ground level\n- (B) kinetic energy\n- (C) major threat to health\n- (D) level of sound\n- (E) eat plants or other animal\n- (F) level on the pyramid\n- (G) level of height\n- (H) Inches or fractions of inches.

Answer: (F)

Many consumers feed at more than one trophic level. Each level on the pyramid represents a trophic level. Many consumers feed at more than one level on the pyramid.


Question: What do many insects and animals feed at?\nOptions:\n- (A) Something that makes plants green\n- (B) only higher trophic levels\n- (C) one consumer level\n- (D) More than one trophic level.\n- (E) organic matter\n- (F) important habitats\n- (G) Microscopic organisms\n- (H) less than one trophic level

Answer: (D)

Many consumers feed at more than one trophic level. Consumers include insects and animals. Many insects and animals feed at more than one trophic level.


Question: Female gametophytes produce eggs inside what part of flowers?\nOptions:\n- (A) Petal.\n- (B) an area swollen with pus\n- (C) allow growth\n- (D) at or near the margins\n- (E) Produce department.\n- (F) Chlorophyll\n- (G) Chicken.\n- (H) Where ovum, are stored

Answer: (H)

Female gametophytes produce eggs inside the ovaries of flowers. Ovum, or eggs, are stored in the ovaries. Female gametophytes produce eggs inside where ovum, or eggs, are stored of flowers.


Question: Female gametophytes produce eggs inside the part of the flower where what will eventually develop?\nOptions:\n- (A) embryos\n- (B) bushes\n- (C) seeds\n- (D) fruit\n- (E) honey\n- (F) fertile\n- (G) pollen\n- (H) bamboo

Answer: (D)

Female gametophytes produce eggs inside the ovaries of flowers. Fruits develop from the ovary of the flower. Female gametophytes produce eggs inside the part of the flower where the fruit will eventually develop.


Question: In flowers, where do female gametophytes produce eggs?\nOptions:\n- (A) fruit\n- (B) ferns\n- (C) plants\n- (D) embryos\n- (E) edible\n- (F) seeds\n- (G) bushes\n- (H) orchids

Answer: (A)

Female gametophytes produce eggs inside the ovaries of flowers. Fruits develop from the ovary of the flower. Female gametophytes produce eggs inside the fruit of flowers.


Question: What is produced by female flower parents in the ovaries?\nOptions:\n- (A) seeds\n- (B) pollen\n- (C) sugar\n- (D) abcess\n- (E) honey\n- (F) H 2 O\n- (G) eggs\n- (H) nectar

Answer: (G)

Female gametophytes produce eggs inside the ovaries of flowers. Gametophytes are the parent of the baby fern. Female flower parents produce eggs inside the ovaries of flowers.


Question: Female what produce eggs inside the ovaries of peonies?\nOptions:\n- (A) gametophytes\n- (B) Plant reproduction\n- (C) honeybees\n- (D) peachleaf willow\n- (E) insects\n- (F) fertile\n- (G) orchids\n- (H) graptolites

Answer: (A)

Female gametophytes produce eggs inside the ovaries of flowers. Currently the state flower is the peony, which originates in China. Female gametophytes produce eggs inside the ovaries of peonies.


Question: What is formed when a male gamete and an egg fuse together?\nOptions:\n- (A) Plant reproduction\n- (B) simple zygote\n- (C) spread flower seeds\n- (D) diploid zygote\n- (E) Chemical energy\n- (F) peachleaf willow\n- (G) duplex zygote\n- (H) reproductive zygote

Answer: (D)

Fertilization occurs when a sperm and an egg fuse to form a diploid zygote. Male gametes are called sperm. Fertilization occurs when a male gamete and an egg fuse together to form a diploid zygote.


Question: Fertilization occurs when an egg and what join together to form a diploid zygote?\nOptions:\n- (A) rapid expansion\n- (B) testosterone\n- (C) gastropod shells\n- (D) penis\n- (E) peachleaf willow\n- (F) pollen\n- (G) male hormone\n- (H) male gamete

Answer: (H)

Fertilization occurs when a sperm and an egg fuse to form a diploid zygote. Male gametes are called sperm. Fertilization occurs when a male gamete and an egg fuse to form a diploid zygote.


Question: What occurs when gametes fuse to form a diploid zygote?\nOptions:\n- (A) permineralization\n- (B) rapid expansion\n- (C) competition\n- (D) fertilization\n- (E) photosynthesis\n- (F) chromosomes\n- (G) mutation\n- (H) Leptospirosis

Answer: (D)

Fertilization occurs when a sperm and an egg fuse to form a diploid zygote. Sperm and eggs are cells known as gametes. Fertilization occurs when gametes fuse to form a diploid zygote.


Question: When gametes fuse, the resultant zygote is:\nOptions:\n- (A) fertile\n- (B) diploid\n- (C) Flowers\n- (D) grow\n- (E) infected\n- (F) It expands\n- (G) pollen\n- (H) seeds

Answer: (B)

Fertilization occurs when a sperm and an egg fuse to form a diploid zygote. Familiar types of gamete include the female ovum , or egg cell, and the male sperm cell. Fertilization occurs when the male and female gametes fuse to form a diploid zygote.


Question: What will be the result of female sperm fusing with an egg to form a diploid zygote?\nOptions:\n- (A) baby girl\n- (B) pollen\n- (C) seeds\n- (D) allow growth\n- (E) Leptospirosis\n- (F) litter\n- (G) Plants growth\n- (H) offspring

Answer: (A)

Fertilization occurs when a sperm and an egg fuse to form a diploid zygote. If a female sperm fertilizes the egg, the result is a baby girl. A baby girl will be the result of female sperm fusing with an egg to form a diploid zygote.


Question: What involves a sperm and egg fusing to form a diploid zygote?\nOptions:\n- (A) Leptospirosis\n- (B) produce offspring\n- (C) allow growth\n- (D) sexual reproduction\n- (E) metabolic reaction\n- (F) peachleaf willow\n- (G) rapid expansion\n- (H) Plant reproduction

Answer: (D)

Fertilization occurs when a sperm and an egg fuse to form a diploid zygote. Sexual reproduction requires formation of gametes, followed by fertilization. Sexual reproduction involves a sperm and egg fusing to form a diploid zygote.


Question: What can be determined by the average number of people per one unit of area?\nOptions:\n- (A) hygeine\n- (B) emissions\n- (C) animals\n- (D) growth\n- (E) forces\n- (F) health\n- (G) education\n- (H) people

Answer: (D)

Population density is the average number of individuals per unit of area or volume. Another measure of growth is population density. Growth of an area can be determined by the average number of people per unit of area.


Question: What is involved in the cellular process of mitosis?\nOptions:\n- (A) Most plants\n- (B) layers of fat\n- (C) A computer\n- (D) Energy.\n- (E) Chemical energy\n- (F) centrioles\n- (G) Energy\n- (H) animals

Answer: (F)

Centrioles are organelles involved in cell division. Mitosis is cell division. Centrioles are organelles involved in mitosis.


Question: Organelles that come in pairs are involved in what?\nOptions:\n- (A) movement\n- (B) Veins and arteries.\n- (C) competition\n- (D) Plants growth\n- (E) Animal survival\n- (F) cell division\n- (G) an organism's body\n- (H) Plant reproduction

Answer: (F)

Centrioles are organelles involved in cell division. Centrioles come in pairs. Organelles that come in pairs are involved in cell division.


Question: Language can be learned through\nOptions:\n- (A) play\n- (B) osmosis\n- (C) instincts\n- (D) years\n- (E) Birds\n- (F) a path\n- (G) sent\n- (H) nerves

Answer: (A)

Behaviors can be learned through play. Language is a learned human behavior. Language can be learned through play.


Question: Girls have used what to learn behaviors for generations?\nOptions:\n- (A) Birds\n- (B) trees\n- (C) rainbows\n- (D) sound\n- (E) alleles\n- (F) bows\n- (G) nerves\n- (H) dolls

Answer: (H)

Behaviors can be learned through play. Girls have played with dolls for generations. Girls have used dolls to learn behaviors for generations.


Question: How can behavior be learned?\nOptions:\n- (A) by inheriting them\n- (B) competition\n- (C) An object is seen\n- (D) by staying away from others\n- (E) by ignoring others\n- (F) Riding a bike\n- (G) firm hugs\n- (H) through games

Answer: (H)

Behaviors can be learned through play. Ian plays role playing games. Behaviors can be learned through games.


Question: Behaviors can be learned through what?\nOptions:\n- (A) competition\n- (B) quitting\n- (C) A computer\n- (D) disappearing\n- (E) changing sizes\n- (F) exercise\n- (G) animals\n- (H) fun games

Answer: (H)

Behaviors can be learned through play. Games are fun to play. Behaviors can be learned through fun games.


Question: How can an animal learn actions?\nOptions:\n- (A) movement\n- (B) Chemical energy\n- (C) by fighting\n- (D) through play\n- (E) by eating\n- (F) when they sleep\n- (G) stamina\n- (H) Riding a bike

Answer: (D)

Behaviors can be learned through play. Kids imitate adult actions and behaviors. Actions can be learned through play.


Question: If a tumor has formed, this gene might have mutated:\nOptions:\n- (A) p53\n- (B) SNPs\n- (C) OCA 2\n- (D) DNA\n- (E) gene\n- (F) tRNA\n- (G) malignancy\n- (H) TRH

Answer: (A)

Cells that divide uncontrollably may form a tumor, or abnormal mass of cells. When p53 is mutated, cells divide uncontrollably. When p53 is mutated a tumor may form.


Question: Cells that divide uncontrollably may form _.\nOptions:\n- (A) masses of eukaryotic origin.\n- (B) masses of neoplastic origin\n- (C) cause people to become sick.\n- (D) Microscopic organisms\n- (E) masses of prokaryotic origin.\n- (F) masses of epithelial origin.\n- (G) Veins and arteries.\n- (H) Wither and die

Answer: (B)

Cells that divide uncontrollably may form a tumor, or abnormal mass of cells. Tumor Tumors are masses of neoplastic origin. Cells that divide uncontrollably may form masses of neoplastic origin.


Question: When cells start to divide uncontrollablly, they may form a what?\nOptions:\n- (A) anemia\n- (B) tissue\n- (C) fever\n- (D) cell\n- (E) organ\n- (F) fibroid\n- (G) acid rain\n- (H) illness

Answer: (F)

Cells that divide uncontrollably may form a tumor, or abnormal mass of cells. For example, a fibroid is a tumor, a wart is a tumor, and cancers are tumors. Cells that divide uncontrollably may form a fibroid.


Question: What can happen when menstruation stops occurring?\nOptions:\n- (A) Localized damage\n- (B) Dehydration\n- (C) periods\n- (D) diabetes\n- (E) massive damage\n- (F) hot flashes\n- (G) Sulfur dioxide\n- (H) epilepsy

Answer: (F)

Menopause occurs when menstruation stops occurring, usually in middle adulthood. Hot flashes are the classic sign of menopause and peri-menopause. Hot flashes can occur when menstruation stops occurring.


Question: A woman's reproductive years usually ends at what stage of life?\nOptions:\n- (A) young adulthood\n- (B) teen years\n- (C) our star\n- (D) It decreases\n- (E) Plant growth is reduced\n- (F) old age\n- (G) our nearest star\n- (H) middle adulthood

Answer: (H)

Menopause occurs when menstruation stops occurring, usually in middle adulthood. Menopause The Changes of Menopause Menopause marks the close of a woman's reproductive years. A woman's reproductive years usually ends in middle adulthood.


Question: What occurs with the stopping of menses?\nOptions:\n- (A) puberty\n- (B) illness\n- (C) period\n- (D) menopause\n- (E) sweating\n- (F) acetic acid\n- (G) Dehydration\n- (H) adulthood

Answer: (D)

Menopause occurs when menstruation stops occurring, usually in middle adulthood. White bryony is used for suppressed menses, menstruation too early and too profuse. Menopause occurs when menses stop occurring, usually in middle adulthood.


Question: What stops once menopause happens?\nOptions:\n- (A) Menial tasks stop\n- (B) Plant growth is reduced\n- (C) Pulse stops\n- (D) Dehydration\n- (E) Breathing stops\n- (F) Menstruation stops\n- (G) smoking tobacco\n- (H) recovery time from fatigue

Answer: (F)

Menopause occurs when menstruation stops occurring, usually in middle adulthood. By definition, menopause occurs when menstruation stops permanently. Usually in middle adulthood menopause happens when menstruation stops permanently.


Question: What is a major change that happens in menopause?\nOptions:\n- (A) forest is destroyed\n- (B) breasts develop\n- (C) Plant growth is reduced\n- (D) direct damage to the lungs\n- (E) pubic bones expand\n- (F) menstruation begins\n- (G) menstruation stops\n- (H) decreases its bodily water

Answer: (G)

Menopause occurs when menstruation stops occurring, usually in middle adulthood. Clearly, middle adulthood is a time change and development. During menopause comes a time of change and development, including when menstruation stops.


Question: In what timeframe does menopause typically occur?\nOptions:\n- (A) Earth orbiting the Sun\n- (B) an organism's body\n- (C) Veins and arteries.\n- (D) the rest of the body\n- (E) By wind and rain\n- (F) 35-65 years old\n- (G) major threat to health\n- (H) Decrease bodily water

Answer: (F)

Menopause occurs when menstruation stops occurring, usually in middle adulthood. Middle adulthood begins around age 35 to 40 and continues through age 65 to 70. Menopause occurs when menstruation stops occurring, usually between 35 and 65 years old.


Question: The most ancient what are trees with woody trunks?\nOptions:\n- (A) it needs them\n- (B) leafy greens\n- (C) more abundant\n- (D) Leeuwenhoek\n- (E) flowering buds\n- (F) pollen\n- (G) graptolites\n- (H) seed plants

Answer: (H)

Most modern gymnosperms are trees with woody trunks. Gymnosperms are the most ancient seed plants. The most ancient seed plants are trees with woody trunks.


Question: What is a tree with a woody trunk?\nOptions:\n- (A) conifer\n- (B) orchids\n- (C) plants\n- (D) trees\n- (E) less water\n- (F) vines\n- (G) lycophytes\n- (H) ferns

Answer: (A)

Most modern gymnosperms are trees with woody trunks. Conifers are examples of gymnosperms. Conifers are trees with woody trunks.


Question: What type of trunk does evergreen usually have?\nOptions:\n- (A) oak\n- (B) greenwood\n- (C) woody\n- (D) bark\n- (E) hollowed\n- (F) Spruce\n- (G) spiny\n- (H) bent

Answer: (C)

Most modern gymnosperms are trees with woody trunks. Gymnosperms are the plants that are known as evergreens. Evergreens are mostly trees with woody trunks.


Question: Bromeliads and cacti have adapted to very _ environments.\nOptions:\n- (A) dry\n- (B) wet\n- (C) arid\n- (D) cold\n- (E) UV\n- (F) warm\n- (G) humid\n- (H) fern

Answer: (A)

Plants that are adapted to very dry environments are called xerophytes. Bromeliads and cacti are xerophytes. Bromeliads and cacti have adapted to very dry environments.


Question: Producers that are adapted to very dry environments are called what?\nOptions:\n- (A) xerophytes\n- (B) ragweed\n- (C) mammals\n- (D) dry plants\n- (E) animals\n- (F) cactus\n- (G) alpacas\n- (H) bacteria

Answer: (A)

Plants that are adapted to very dry environments are called xerophytes. If the plant is green, it is a producer. Producers that are adapted to very dry environments are called xerophytes.


Question: Cacti are adapted to what?\nOptions:\n- (A) the snow\n- (B) dry environments\n- (C) Animal survival\n- (D) survival\n- (E) tropical regions\n- (F) moist environments\n- (G) relocation\n- (H) salt and water.

Answer: (B)

Plants that are adapted to very dry environments are called xerophytes. Succulents, bromeliads and cacti are xerophytes. A plant that is adapt to a very dry environment is a cacti.


Question: What do xerophytes do to adapt to dry environments?\nOptions:\n- (A) By wind and rain\n- (B) The flowers are pollinated\n- (C) photosynthesis.\n- (D) Transfers energy\n- (E) To conserve energy\n- (F) alter their physical structure\n- (G) thermal insulators\n- (H) hydrate their cells

Answer: (F)

Plants that are adapted to very dry environments are called xerophytes. Plants that have adapted by altering their physical structure are called xerophytes . Xerophytes change their physical structure to adapt to dry environments.


Question: What is one reason birds have covered bodies?\nOptions:\n- (A) To help them burrow\n- (B) They have thick fur\n- (C) layers of fat\n- (D) To help them fly\n- (E) To keep their body heat.\n- (F) To attract predators\n- (G) with their fur\n- (H) To make them heavier

Answer: (D)

Feathers help birds fly and provide insulation. Birds have bodies covered with feathers. Birds bodies are covered to help them fly and provide insulation.


Question: Feathers help what kind of animals fly and provide insulation?\nOptions:\n- (A) preventing heat transfer\n- (B) dragons\n- (C) passenger pigeons\n- (D) butterflies\n- (E) animals in the class Aves\n- (F) airplanes\n- (G) it protects them\n- (H) retaining heat

Answer: (E)

Feathers help birds fly and provide insulation. Class Aves is for the birds, literally. Feathers help animals in the class Aves fly and give them insulation.


Question: What is essential for cellular respiration for organisms consuming voas and alcohols?\nOptions:\n- (A) carbon\n- (B) glucose\n- (C) h2o\n- (D) Air\n- (E) oxygen\n- (F) Energy\n- (G) Energy.\n- (H) water

Answer: (E)

Oxygen is essential for cellular respiration for all aerobic organisms. Aerobic organisms consume VOAs and alcohols. Oxygen is essential for cellular respiration for organisms consuming VOAs and alcohols.


Question: What process is needed to support a baby in the womb?\nOptions:\n- (A) Perspiration\n- (B) Energy\n- (C) heating liquids\n- (D) Respiration\n- (E) organs\n- (F) Validation\n- (G) Energy.\n- (H) Doctrination

Answer: (D)

Oxygen is essential for cellular respiration for all aerobic organisms. Less oxygen for the mother means less oxygen for the baby. Mothers need respiration for their babies.


Question: Which is a requirement for life?\nOptions:\n- (A) glucose\n- (B) hydration\n- (C) sunlight\n- (D) scandium\n- (E) recovery\n- (F) oxygen\n- (G) uranium\n- (H) radon

Answer: (F)

Oxygen is essential for cellular respiration for all aerobic organisms. Cellular respiration is a requirement for life. Oxygen is a requirement for life.


Question: Oxygen is essential for cellular respiration for what?\nOptions:\n- (A) Man\n- (B) Energy.\n- (C) humans\n- (D) plants\n- (E) animals\n- (F) Energy\n- (G) health\n- (H) fungi

Answer: (H)

Oxygen is essential for cellular respiration for all aerobic organisms. Fungi are aerobic organisms. Oxygen is essential for cellular respiration for fungi.


Question: What is essential for cellular respiration for all aerobic organisms.\nOptions:\n- (A) electron\n- (B) glucose\n- (C) Energy\n- (D) Energy.\n- (E) chemicals\n- (F) Plants\n- (G) fungi\n- (H) bacteria

Answer: (F)

Oxygen is essential for cellular respiration for all aerobic organisms. Oxygen, for example, is produced by plants. Plants are essential for cellular respiration for all aerobic organisms.


Question: Which needs fungi need to survive?\nOptions:\n- (A) Energy\n- (B) food\n- (C) alveoli\n- (D) oxygen\n- (E) peat\n- (F) bushes\n- (G) bacteria\n- (H) trees

Answer: (D)

Oxygen is essential for cellular respiration for all aerobic organisms. Fungi are aerobic organisms. Oxygen is essential for fungi cellular respiration.


Question: Adult sperm are capable of producing sperm and what in order to be able to reproduce?\nOptions:\n- (A) Plants growth\n- (B) reproduce\n- (C) skin cells\n- (D) female gametes\n- (E) it needs them\n- (F) kinetic energy\n- (G) estrogen\n- (H) vaginas

Answer: (D)

Adult sponges produce eggs and sperm. Female gametes are called eggs. Adult sponges produce female gametes and sperm.


Question: Mature sponges produce what?\nOptions:\n- (A) eggs and sperm\n- (B) live young\n- (C) just sperm\n- (D) Organic compounds\n- (E) Chemical energy\n- (F) just eggs\n- (G) heat energy\n- (H) gastropod shells

Answer: (A)

Adult sponges produce eggs and sperm. Adults are sexually mature. Mature sponges produce eggs and sperm.


Question: Adult sponges produce sperm and what other sex cell?\nOptions:\n- (A) testicles\n- (B) it needs them\n- (C) gastropod shells\n- (D) fertile\n- (E) testosterone\n- (F) zygotes\n- (G) female gametes\n- (H) barnacles

Answer: (G)

Adult sponges produce eggs and sperm. Each ovule usually contains one egg , the female gamete or sex cell. Adult sponges produce female gametes and sperm.


Question: A thing which is what produces eggs and sperm?\nOptions:\n- (A) seeds\n- (B) fertile\n- (C) insects\n- (D) organ\n- (E) a fish\n- (F) pollen\n- (G) barnacles\n- (H) sessile

Answer: (H)

Adult sponges produce eggs and sperm. All adult sponges are sessile. A thing which is sessile produces eggs and sperm.


Question: What produces both eggs and sperm?\nOptions:\n- (A) Plant reproduction\n- (B) sub-units of species\n- (C) gastropod shells\n- (D) an individual mature sponge\n- (E) Microscopic organisms\n- (F) members of their own species\n- (G) peachleaf willow\n- (H) seed dispersal

Answer: (D)

Adult sponges produce eggs and sperm. An adult is mature, fully developed. Mature sponges produce eggs and sperm.


Question: Hostility can be one outcome of:\nOptions:\n- (A) relocation\n- (B) behavior research\n- (C) decrease stamina\n- (D) forces\n- (E) fungi\n- (F) competition\n- (G) tolerance\n- (H) Gunshots

Answer: (F)

Competition may lead to aggressive behaviors or displays of aggression. Frequently their behavior is aggressively hostile. Competition may lead to hostility.


Question: What can lead to bullying?\nOptions:\n- (A) Cooperation\n- (B) Isolation\n- (C) Damaged hearing\n- (D) Perfection\n- (E) Competition\n- (F) negative\n- (G) smoking tobacco\n- (H) heat or cold

Answer: (E)

Competition may lead to aggressive behaviors or displays of aggression. Aggressive behavior is often first recognized as bullying behavior. Competition can result in bullying.


Question: What are chromosomes made of?\nOptions:\n- (A) Deoxyribonucleicacid, protein\n- (B) sulfuric acid, fat\n- (C) Chemical energy\n- (D) protein, hydrobromic acid\n- (E) boric acid, protein\n- (F) Something that comes in a bundle of fibers\n- (G) sub-units of species\n- (H) A compound that donates proton

Answer: (A)

Chromosomes are coiled structures made of DNA and proteins. DNA stands for Deoxyribonucleicacid. Chromosomes are coiled structures made of Deoxyribonucleicacid and proteins.


Question: What are one thing the combination of proteins and dna make up?\nOptions:\n- (A) alleles\n- (B) sperm\n- (C) insects\n- (D) embryos\n- (E) fusion\n- (F) PDAs\n- (G) humans\n- (H) complex

Answer: (B)

Chromosomes are coiled structures made of DNA and proteins. An egg or sperm with an extra chromosome or missing a chromosome is then made. Eggs and sperm have coiled structures made of DNA and proteins.


Question: What causes human disease?\nOptions:\n- (A) HPV\n- (B) UV\n- (C) minerals\n- (D) Tamiflu\n- (E) mold\n- (F) HIV\n- (G) human growth\n- (H) CFCs

Answer: (F)

Viruses cause many human diseases. Examples include influenza, rabies, HIV, and Herpes viruses. Influenza causes human disease.


Question: Glutamate transport requires what?\nOptions:\n- (A) chemicals\n- (B) flavoring\n- (C) glucose\n- (D) energy\n- (E) MSG\n- (F) Energy.\n- (G) chop sui\n- (H) oxygen

Answer: (D)

Vesicle transport requires energy, so it is also a form of active transport. Synaptic vesicles glutamate transporter 5. Glutamate transport requires energy.


Question: Why does vesicle transport need energy? \nOptions:\n- (A) it helps plants in growing\n- (B) to prevent movement\n- (C) for movement of substances\n- (D) during the day\n- (E) Transfers energy\n- (F) flow of electrons\n- (G) to breath\n- (H) magnetism

Answer: (C)

Vesicle transport requires energy, so it is also a form of active transport. Active transport involves movement of substances against a chemical gradient. Vesicle transport requires energy for movement of substances against a chemical gradient.


Question: What is a form of vesicle transport that requires energy?\nOptions:\n- (A) absorption\n- (B) glucose\n- (C) Leptospirosis\n- (D) a solute\n- (E) Energy.\n- (F) bioaerosols\n- (G) direct energy\n- (H) heat or cold

Answer: (A)

Vesicle transport requires energy, so it is also a form of active transport. Absorption comes from active transport. Absorption is a form of vesicle transport that requires energy.


Question: Vesicle transport is a form of _.\nOptions:\n- (A) diffusion\n- (B) animals\n- (C) communication\n- (D) movement\n- (E) direct energy\n- (F) resistance\n- (G) Vibrations.\n- (H) motion

Answer: (A)

Vesicle transport requires energy, so it is also a form of active transport. Active transport is another form of diffusion. Vesicle transport is a form of diffusion.


Question: How do proteins leave the er?\nOptions:\n- (A) aqueous solution\n- (B) it's state\n- (C) Veins and arteries.\n- (D) Move to another area\n- (E) allow growth\n- (F) active transport\n- (G) It expands\n- (H) movement

Answer: (F)

Vesicle transport requires energy, so it is also a form of active transport. Proteins leave the ER in transport vesicles 5. Proteins leave the ER via active transport.


Question: Protein transportation between the er and the golgi require what?\nOptions:\n- (A) energy\n- (B) glucose\n- (C) vitamin C\n- (D) chemicals\n- (E) Energy.\n- (F) oxygen\n- (G) recycling\n- (H) Nutrients

Answer: (A)

Vesicle transport requires energy, so it is also a form of active transport. Proteins are transported to and from the ER via vesicles to the Golgi. Protein transportation between the ER and the Golgi require energy.


Question: Roots, stems and leaves continue to do what throughout their lives?\nOptions:\n- (A) die\n- (B) edible\n- (C) expand\n- (D) grow\n- (E) growth\n- (F) spread\n- (G) live\n- (H) propagate

Answer: (D)

Most plants continue to grow throughout their lives. All seed plants have roots, a stem, and leaves. Roots, stems and leaves continue to grow throughout their lives.


Question: When do most plants grow?\nOptions:\n- (A) when they decide to\n- (B) all of their life\n- (C) our nearest star\n- (D) during death\n- (E) chlorophyll\n- (F) during the day\n- (G) Earth orbiting the Sun\n- (H) by indirect light

Answer: (B)

Most plants continue to grow throughout their lives. Everything that lives eventually dies. Most plants continue to grow until they die.


Question: What continues to grow throughout their lives? \nOptions:\n- (A) potatoes\n- (B) Hemoglobin\n- (C) tortoises\n- (D) plastic roses.\n- (E) Human teeth.\n- (F) Lilies.\n- (G) Silk daisies.\n- (H) vegetation

Answer: (F)

Most plants continue to grow throughout their lives. Lilies continually produce new bulbs, from which grow new plants. Lilies continue to grow throughout their lives.


Question: What happens to bamboo throughout its life?\nOptions:\n- (A) It helps them survive\n- (B) it has cellular respiration\n- (C) it dies and comes back to life\n- (D) it continues to grow\n- (E) it needs no water\n- (F) it keeps an organism warm\n- (G) flow of electrons\n- (H) the body's largest organ

Answer: (D)

Most plants continue to grow throughout their lives. Bamboos are vigorous, rugged plants. Bamboo continue to grow throughout their lives.


Question: What continues to grow throughout their lives?\nOptions:\n- (A) Chemical energy\n- (B) bacteria\n- (C) animals\n- (D) Humans\n- (E) Orange Trees\n- (F) Cats\n- (G) an organism's body\n- (H) Dogs

Answer: (E)

Most plants continue to grow throughout their lives. All orange trees are plants. Orange trees continue to grow throughout their lives.


Question: What process reads and regulates gene expression?\nOptions:\n- (A) organs\n- (B) sensory neurons\n- (C) A computer\n- (D) Plants growth\n- (E) translation\n- (F) sweating\n- (G) heat or cold\n- (H) Most plants

Answer: (E)

Translation reads the genetic code in mRNA and makes a protein. Gene expression can be regulated at the level of translation of an mRNA into a protein. Translation reads and regulates gene expression.


Question: What involves interaction with ribosomes?\nOptions:\n- (A) permineralization\n- (B) oxidation reaction\n- (C) It helps them survive\n- (D) Translation of mRNA\n- (E) flow of electrons\n- (F) animal transport\n- (G) resistance activities\n- (H) allow growth

Answer: (D)

Translation reads the genetic code in mRNA and makes a protein. Translation of mRNA into protein involves the interaction of the mRNA with ribosomes. Translation of mRNA involves interaction with ribosomes.


Question: What kind of cell division produces sex cells in animals?\nOptions:\n- (A) complex\n- (B) insects\n- (C) pollen\n- (D) gametes\n- (E) sexual division\n- (F) meiosis\n- (G) reproduction cells\n- (H) seeds

Answer: (F)

Meiosis is the type of cell division that produces gametes. Animals that reproduce sexually produce sex cells, or gametes. Meiosis is the type of cell division that produces sex cells.


Question: Meiosis is the type of _ that produces ova and spermatozoa.\nOptions:\n- (A) permineralization\n- (B) an organism's body\n- (C) animals\n- (D) Plant reproduction\n- (E) Most plants\n- (F) Chemical energy\n- (G) rapid expansion\n- (H) cell division

Answer: (H)

Meiosis is the type of cell division that produces gametes. Examples of gametes are ova and spermatozoa. Meiosis is the type of cell division that produces ova and spermatozoa.


Question: Meiosis is the type of cell division that produces:\nOptions:\n- (A) animals\n- (B) Plant reproduction\n- (C) Most plants\n- (D) peachleaf willow\n- (E) Plants growth\n- (F) haploid cells\n- (G) spread flower seeds\n- (H) rapid expansion

Answer: (F)

Meiosis is the type of cell division that produces gametes. Gametes are haploid egg or sperm that fuse to form a zygote. Meiosis is the type of cell division that produces haploid cells.


Question: What helps cells take up sugar from the blood in the body?\nOptions:\n- (A) exercise\n- (B) sugar\n- (C) Energy\n- (D) Energy.\n- (E) bones\n- (F) pancreas\n- (G) insulin\n- (H) blood cells

Answer: (G)

Insulin helps cells take up glucose from the blood. For instance, glucose is a sugar. Insulin helps cells take up sugar from the blood.


Question: Cells obtain energy from the blood with the help of\nOptions:\n- (A) sweating\n- (B) batteries\n- (C) pancreas\n- (D) electron\n- (E) insulin\n- (F) alveoli\n- (G) oxygen\n- (H) sunlight

Answer: (E)

Insulin helps cells take up glucose from the blood. Blood Glucose Blood Glucose Glucose is the principal source of energy for mammalian cells. Insulin helps cells take up energy from the blood.


Question: What are beaks adapted to?\nOptions:\n- (A) principals of aerodynamics\n- (B) it keeps an organism warm\n- (C) Animal survival\n- (D) the environment\n- (E) the color of the feathers\n- (F) how the bird flies\n- (G) food that is scavenged\n- (H) the call the bird makes

Answer: (G)

Bird beaks are generally adapted for the food they eat. Birds eat food that they scavenge. Beaks are adapted for food that is scavenged.


Question: Organisms in which class have beaks that are generally adapted for the food they eat?\nOptions:\n- (A) apples\n- (B) Mammalia\n- (C) koalas\n- (D) voles\n- (E) Agnatha\n- (F) Aves\n- (G) Reptilia\n- (H) edible

Answer: (F)

Bird beaks are generally adapted for the food they eat. All birds are placed in the Class Aves. Organisms in the class Aves have beaks that are generally adapted for the food they eat.


Question: What are bird beaks often adapted to eat?\nOptions:\n- (A) moles.\n- (B) fish\n- (C) nests\n- (D) chicks\n- (E) trees\n- (F) apples\n- (G) edible\n- (H) Fruits

Answer: (B)

Bird beaks are generally adapted for the food they eat. Birds eat the fish, algae and human food. Bird beaks are often adapted for eating fish.


Question: What part of a bird's body is generally adapted to the kind of food that they eat?\nOptions:\n- (A) bill\n- (B) skin\n- (C) growth\n- (D) sugar\n- (E) fat\n- (F) H 2 O\n- (G) organ\n- (H) muscle

Answer: (A)

Bird beaks are generally adapted for the food they eat. Birds have a beak or a bill. Bird bills are generally adapted for the food they eat.


Question: Temperature falls from the equator to \nOptions:\n- (A) South Africa\n- (B) Antarctica\n- (C) Asia\n- (D) our planet\n- (E) Summer\n- (F) during the day\n- (G) South America\n- (H) It decreases

Answer: (B)

Temperature falls from the equator to the poles. First, strong winds circling Antarctica isolate the atmosphere near the pole the winter. Temperature falls from the equator to Antarctica.


Question: What falls decreasingly on the earth from the equator to the poles?\nOptions:\n- (A) autumn\n- (B) heat\n- (C) chill\n- (D) Vapor\n- (E) Energy\n- (F) cold\n- (G) summer\n- (H) Mass

Answer: (B)

Temperature falls from the equator to the poles. Temperature is a measure of the amount of heat. Heat falls from the equator to the poles.


Question: For animals, displays of color can be viewed as:\nOptions:\n- (A) spectrum\n- (B) prudishness\n- (C) rainbow\n- (D) courtship\n- (E) positive\n- (F) harm them\n- (G) produce light\n- (H) Movement

Answer: (D)

Courtship is behavior that is intended to attract a mate. Almost all animals display colors to attract a mate or to scare off a predator. Courtship can be manifested by displays of color.


Question: Courtship is a behavior that animals use to attract what?\nOptions:\n- (A) a pollinator\n- (B) a partner\n- (C) animals\n- (D) a child\n- (E) honeybees\n- (F) humans\n- (G) reproduce\n- (H) a host

Answer: (B)

Courtship is behavior that is intended to attract a mate. Mating Ducks usually look for a mate or partner in winter. Courtship is behavior that is intended to attract a partner.


Question: What are behavior that is intended to attract a mate?\nOptions:\n- (A) a doorbell\n- (B) firm hugs\n- (C) Complex rituals\n- (D) Riding a bike\n- (E) Behaviour modifications\n- (F) Magnets\n- (G) honeybees\n- (H) Friendship

Answer: (C)

Courtship is behavior that is intended to attract a mate. Complex courtship rituals precede mating. Complex rituals are behavior that are intended to attract a mate.


Question: What is the behavior of attracting something that is phenotypically similar to the seeker called?\nOptions:\n- (A) an object\n- (B) stalking\n- (C) jealousy\n- (D) nonverbal communication\n- (E) ducks\n- (F) animals\n- (G) orchids\n- (H) courtship

Answer: (H)

Courtship is behavior that is intended to attract a mate. Assortative mating is the mating of individuals that are phenotypically similar. Courtship is the behavior of attracting something that is phenotypically similar to the seeker.


Question: What lacks respiratory and excretory systems?\nOptions:\n- (A) the Sun\n- (B) insects\n- (C) starfish\n- (D) barnacles\n- (E) ferns\n- (F) water\n- (G) Conifers\n- (H) humans

Answer: (C)

Echinoderms lack respiratory and excretory systems. Echinoderms are represented by the starfish. Starfish lack respiratory and excretory systems.


Question: What kind of animal doesn't have a respiratory or excretory system?\nOptions:\n- (A) a fish\n- (B) bears\n- (C) ant\n- (D) whale\n- (E) humans\n- (F) starfish\n- (G) mammals\n- (H) llama

Answer: (F)

Echinoderms lack respiratory and excretory systems. Starfish and sea urchins are also echinoderms. Starfish lack respiratory and excretory systems.


Question: What lack respiratory and excretory systems?\nOptions:\n- (A) They may not survive.\n- (B) members of their own species\n- (C) platypus\n- (D) humans\n- (E) crinoids and blastoids\n- (F) passenger pigeons\n- (G) graptolites\n- (H) whales

Answer: (E)

Echinoderms lack respiratory and excretory systems. Echinoderms in the diorama include the crinoids and blastoids. Crinoids and blastoids lack respiratory and excretory systems.


Question: What do echinoderms lack?\nOptions:\n- (A) Lungs\n- (B) Mass\n- (C) oxygen\n- (D) eardrum\n- (E) gills\n- (F) ovaries\n- (G) Organs\n- (H) Bodies

Answer: (A)

Echinoderms lack respiratory and excretory systems. Lung mechanics and gas exchange are topics during study of the respiratory system. Echinoderms have no lungs.


Question: _ lack respiratory and excretory systems.\nOptions:\n- (A) graptolites\n- (B) insects\n- (C) ferns\n- (D) barnacles\n- (E) fossil fuels\n- (F) Allergies\n- (G) starfish\n- (H) parasites

Answer: (G)

Echinoderms lack respiratory and excretory systems. Echinoderms are represented by the starfish. Starfish lack respiratory and excretory systems.


Question: Urine has to pass through what as the bladder empties?\nOptions:\n- (A) epidermal\n- (B) body water\n- (C) a sphincter\n- (D) all liquids\n- (E) mouth of rivers\n- (F) alveoli\n- (G) salt and water.\n- (H) aqueous solution

Answer: (C)

Urine leaves the body through a sphincter in the process of urination. From the bladder, urine leaves the body. The bladder empties through a sphincter in the process of urination.


Question: Some touch receptors sense a difference in pain or what?\nOptions:\n- (A) heat\n- (B) cold\n- (C) skin\n- (D) nerves\n- (E) color\n- (F) contact\n- (G) smell\n- (H) motion

Answer: (A)

Some touch receptors sense differences in temperature or pain. Heat and temperature are the same. Some touch receptors sense differences in heat or pain.


Question: What senses differences when you hurt your skin?\nOptions:\n- (A) touch receptors\n- (B) sensory neurons\n- (C) eyes\n- (D) Veins and arteries.\n- (E) matter vibrating\n- (F) light receptors\n- (G) smell\n- (H) an organism's body

Answer: (A)

Some touch receptors sense differences in temperature or pain. If the skin is painful, seek medical attention. If your skin hurts, your touch receptors will sense differences.


Question: Which animal has a backbone?\nOptions:\n- (A) camels\n- (B) snail\n- (C) bats\n- (D) cricket\n- (E) a fish\n- (F) bird\n- (G) koalas\n- (H) octopus

Answer: (F)

Birds are endothermic tetrapod vertebrates. Animals with backbones are called vertebrates. All birds have backbones.


Question: Birds are vertebrate endotherms with what?\nOptions:\n- (A) fat\n- (B) Energy\n- (C) legs\n- (D) like some sharks\n- (E) Tail\n- (F) invertebrates\n- (G) arms\n- (H) four

Answer: (C)

Birds are endothermic tetrapod vertebrates. Legs define Tetrapods. Birds are vertebrate endotherms with legs.


Question: Flamingos are funny looking endothermic tetrapod:\nOptions:\n- (A) ungulates\n- (B) four limbs\n- (C) animals\n- (D) warm-blooded\n- (E) storks\n- (F) fur and fat\n- (G) cuckoo\n- (H) vertebrates

Answer: (H)

Birds are endothermic tetrapod vertebrates. Flamingos are funny looking birds. Flamingos are funny looking endothermic tetrapod vertebrates.


Question: What are endothermic vertebrates with legs?\nOptions:\n- (A) Birds\n- (B) mammals\n- (C) Snakes\n- (D) ducks\n- (E) Lizards\n- (F) ants\n- (G) long\n- (H) toads

Answer: (A)

Birds are endothermic tetrapod vertebrates. Legs define Tetrapods. Birds are endothermic vertebrates with legs.


Question: Some aviary species fly and others swim but, all endothermic tetrapod vertebrates share what trait?\nOptions:\n- (A) warm-blooded\n- (B) Weight\n- (C) fur and fat\n- (D) sweating\n- (E) Epidermis\n- (F) feathers\n- (G) retina\n- (H) four limbs

Answer: (F)

Birds are endothermic tetrapod vertebrates. Some birds fly and some birds swim, but all birds have feathers. Some aviary species fly and others swim but, all are endothermic tetrapod vertebrates.


Question: What kind of animal would be an endothermic tetrapod vertebrate?\nOptions:\n- (A) animals in the class aves\n- (B) barks and snarls\n- (C) passenger pigeons\n- (D) Something that is self-aware\n- (E) Generating heat\n- (F) retaining heat\n- (G) absorb light energy\n- (H) it keeps an organism warm

Answer: (A)

Birds are endothermic tetrapod vertebrates. Class Aves is for the birds, literally. Animals in the class aves are endothermic tetrapod vertebrates.


Question: Which has specialized reproductive organs?\nOptions:\n- (A) Clouds\n- (B) Conifers\n- (C) River\n- (D) peachleaf willow\n- (E) Venus flytrap\n- (F) animals\n- (G) mammals\n- (H) Mountain

Answer: (E)

Plants have specialized reproductive organs. Most people know that the Venus Flytrap is a carnivorous plant. The Venus Flytrap has specialized reproductive organs.


Question: Plants have specialized tissues for what?\nOptions:\n- (A) reproduction\n- (B) muscles\n- (C) bone\n- (D) important habitats\n- (E) health\n- (F) food and shelter\n- (G) skeleton\n- (H) survival

Answer: (A)

Plants have specialized reproductive organs. Tissues are organized into organs. Plants have specialized reproductive tissues.


Question: What is something that has specialized reproductive organs?\nOptions:\n- (A) animals\n- (B) insects\n- (C) Conifers\n- (D) burrs\n- (E) potatoes\n- (F) rabbit\n- (G) sharks\n- (H) ducks

Answer: (A)

Plants have specialized reproductive organs. Plant reproduction is similar to animal reproduction. Animals have specialized reproductive organs.


Question: What does bush basil have?\nOptions:\n- (A) The flowers are pollinated\n- (B) photosynthesis.\n- (C) characteristics\n- (D) A compound that donates proton\n- (E) Something that comes in a bundle of fibers\n- (F) sub-units of species\n- (G) the body's largest organ\n- (H) specialized reproductive organ

Answer: (H)

Plants have specialized reproductive organs. Holy basil and bush basil are related plants. Bush basil has specialized reproductive organs.


Question: What is the form of genetic material used during mitosis called?\nOptions:\n- (A) proteins\n- (B) Plants growth\n- (C) genetic fluid\n- (D) mitosis cells\n- (E) chromosomes\n- (F) pollen\n- (G) Leptospirosis\n- (H) Chemical energy

Answer: (E)

Chromosomes are the form of the genetic material of a cell during cell division. Mitosis is cell division. Chromosomes are the form of the genetic material of a cell during mitosis.


Question: What structure moves the genetic material of a cell during cell division?\nOptions:\n- (A) an organism's body\n- (B) microtubules\n- (C) Most plants\n- (D) Chemical energy\n- (E) Plant reproduction\n- (F) Electrical energy\n- (G) pollen\n- (H) A computer

Answer: (B)

Chromosomes are the form of the genetic material of a cell during cell division. Microtubules form part of the mitotic spindle that moves the chromosomes during cell division. Microtubules move the genetic material of a cell during cell division.


Question: What are the form of the genetic material of a cell during mitosis?\nOptions:\n- (A) chromosomes\n- (B) graptolites\n- (C) fur and fat\n- (D) peachleaf willow\n- (E) pollen\n- (F) Leptospirosis\n- (G) animals\n- (H) it can be seen

Answer: (A)

Chromosomes are the form of the genetic material of a cell during cell division. Mitosis is cell division. Chromosomes are the form of the genetic material of a cell during mitosis.


Question: What is necessary for a growing child?\nOptions:\n- (A) four limbs\n- (B) stamina\n- (C) hydration\n- (D) food\n- (E) pets\n- (F) minerals\n- (G) plastics\n- (H) a measuring stick

Answer: (F)

Minerals are chemical elements that are essential for body processes. Children's bodies are in a developing process. Minerals are necessary for children's growths.


Question: What is a chemical element essential for good health?\nOptions:\n- (A) sweating\n- (B) light energy\n- (C) oxygen\n- (D) bioaerosols\n- (E) Chlorophyll\n- (F) hydration\n- (G) Potassium\n- (H) fever

Answer: (G)

Minerals are chemical elements that are essential for body processes. Potassium is a trace mineral essential for growth and good health. Potassium is a chemical element essential for good health.


Question: Marine annelids can make a swimming larvae called what?\nOptions:\n- (A) barnacles\n- (B) survive\n- (C) graptolites\n- (D) epidermal\n- (E) Something to move\n- (F) a trochophore\n- (G) fertile\n- (H) permineralization

Answer: (F)

Adult worms go through a major transformation to develop reproductive organs. Marine annelid worms have larvae called trochophores that swim about by means of cilia. Marine annelids go through a major transformation to be able to make larvae called trochophores that swim about by means of cilia.


Question: When do platyhelminthes reproductive organs develop?\nOptions:\n- (A) when they become adults\n- (B) It helps them survive\n- (C) produce offspring\n- (D) By wind and rain\n- (E) during the day\n- (F) members of their own species\n- (G) an area swollen with pus\n- (H) Something coming from a gland

Answer: (A)

Adult worms go through a major transformation to develop reproductive organs. Marine flatworms belong to a major group of worms called the Platyhelminthes. Adult platyhelminthes go through a major transformation to develop reproductive organs.


Question: What grows a cumberbund-like band around itself in adulthood?\nOptions:\n- (A) legumes\n- (B) Bats\n- (C) mammals\n- (D) bamboo\n- (E) swea\n- (F) worms\n- (G) fungi\n- (H) bushes

Answer: (F)

Adult worms go through a major transformation to develop reproductive organs. An enlarged cummerbund-like band near the worm's head holds the reproductive organs. Adult worms develop a cumberbund-like band near the head.


Question: Which is immobile?\nOptions:\n- (A) adult starfish\n- (B) all matter\n- (C) adult goldfish\n- (D) gastropod shells\n- (E) tadpoles\n- (F) adult sponges\n- (G) an object\n- (H) an organism's body

Answer: (F)

Adult sponges are sessile. Sessile Attached permanently, immobile. Adult sponges are immobile.


Question: What are attached permanently?\nOptions:\n- (A) Veins and arteries.\n- (B) sensory neurons\n- (C) barnacles\n- (D) tadpoles\n- (E) seahorses\n- (F) alligators\n- (G) adult sponges\n- (H) an organism's body

Answer: (G)

Adult sponges are sessile. Sessile Attached permanently, immobile. Adult sponges are attached permanently and cannot move.


Question: Adult sponges are\nOptions:\n- (A) warm\n- (B) immobile\n- (C) food\n- (D) parasites\n- (E) strong\n- (F) white\n- (G) fertile\n- (H) warm-blooded

Answer: (B)

Adult sponges are sessile. Sessile Attached permanently, immobile. Adult sponges are attached permanently, immobile.


Question: What is true of all adult sponges?\nOptions:\n- (A) they are immobile.\n- (B) at or near the margins\n- (C) They may not survive.\n- (D) water conservation\n- (E) Light passing through water\n- (F) competition\n- (G) To keep their body heat.\n- (H) permineralization

Answer: (A)

Adult sponges are sessile. Sessile Attached permanently, immobile. Adult sponges are attached permanently, immobile.


Question: What does an adult sponge have?\nOptions:\n- (A) gills\n- (B) Length\n- (C) polyps\n- (D) Energy.\n- (E) alveoli\n- (F) a cuticle\n- (G) retina\n- (H) Energy

Answer: (C)

Adult sponges are sessile. Polyps can be peduncular or sessile, and are usually viral in origin. Adult sponges have polyps.


Question: What do all vertebrates have that invertebrates don't?\nOptions:\n- (A) sensory neurons\n- (B) fur and fat\n- (C) bones and joints\n- (D) a jaw bone\n- (E) kinetic energy\n- (F) Chemical energy\n- (G) a spinal column\n- (H) a set of gills

Answer: (G)

Vertebrates are all chordates that have a backbone. Invertebrates are animals who lack a backbone or spinal column. Vertebrates are all chordates that have a spinal column.


Question: What do all vertebrates have?\nOptions:\n- (A) fur and fat\n- (B) sensory neurons\n- (C) Veins and arteries.\n- (D) four limbs\n- (E) jaws and scales\n- (F) a slimy coat\n- (G) jaw and a backbone\n- (H) feathers

Answer: (G)

Vertebrates are all chordates that have a backbone. All chordates have jaws. Vertebrates have a jaw and a backbone.


Question: What has a layer of fat under the skin to help insulate the body?\nOptions:\n- (A) goats\n- (B) snakes\n- (C) hamburgers\n- (D) animals\n- (E) humans\n- (F) rabbit\n- (G) bears\n- (H) fur

Answer: (E)

Mammals have a layer of fat under the skin to help insulate the body. All humans are mammals. Humans have a layer of fat under the skin to help insulate the body.


Question: What does a hairy organism have under its skin to help insulate the body?\nOptions:\n- (A) fat\n- (B) hair\n- (C) food\n- (D) cell\n- (E) nerves\n- (F) coat\n- (G) fur\n- (H) marrow

Answer: (A)

Mammals have a layer of fat under the skin to help insulate the body. If it has hair it is a mammal. An organism with hair has a layer of fat under the skin to help insulate the body.


Question: What keeps mammals warm?\nOptions:\n- (A) evaporation\n- (B) Animal fur\n- (C) staying warm\n- (D) sweating\n- (E) They have thick fur\n- (F) with their fur\n- (G) a layer of fat\n- (H) Veins and arteries.

Answer: (G)

Mammals have a layer of fat under the skin to help insulate the body. Glass insulation keeps beverage warm for hours. Mammals have a layer of fat under the skin to keep them warm.


Question: What are a major food source to organisms including humans?\nOptions:\n- (A) leeches\n- (B) earthworms\n- (C) snails\n- (D) plants\n- (E) tapeworms\n- (F) trees\n- (G) potatoes\n- (H) bushes

Answer: (C)

Mollusks are a major food source for other organisms, including humans. Mollusks in the diorama include snails and clams. Snails are a major food source for other organisms, including humans.


Question: What is a major food source for humans?\nOptions:\n- (A) poison dart frogs\n- (B) honeybees\n- (C) barnacles\n- (D) intervertebrates\n- (E) other humans\n- (F) photosynthesis\n- (G) the body's largest organ\n- (H) Most plants

Answer: (D)

Mollusks are a major food source for other organisms, including humans. Mollusks are invertebrates and are no exception. Intervertebrates are a major food source for other organisms, including humans.


Question: What are mollusks used for?\nOptions:\n- (A) a herbivore diet\n- (B) survival\n- (C) a vegetarian diet\n- (D) Converting waste.\n- (E) Catch prey\n- (F) an omnivore diet\n- (G) an egg diet\n- (H) animal transport

Answer: (F)

Mollusks are a major food source for other organisms, including humans. Many organisms are omnivores with variable diets. Humans have variable diets and some consume mollusks as a major food source.


Question: What do humans eat?\nOptions:\n- (A) Kelp\n- (B) sugar\n- (C) legumes\n- (D) food\n- (E) Eyes\n- (F) Coral\n- (G) animals\n- (H) Squid

Answer: (H)

Mollusks are a major food source for other organisms, including humans. Interestingly, a squid is also a mollusk. Humans eat squid.


Question: What are a major food source for other organisms, including humans?\nOptions:\n- (A) Earthworms\n- (B) Soft-bodied invertebrates\n- (C) Fully cooking the oysters\n- (D) absorb light energy\n- (E) remains of prehistoric life\n- (F) members of their own species\n- (G) Humans\n- (H) Lawns

Answer: (B)

Mollusks are a major food source for other organisms, including humans. Mollusks are soft-bodied invertebrates. Soft-bodied invertebrates are a major food source for other organisms, including humans.


Question: What is a major food source for other organisms, including humans?\nOptions:\n- (A) gastropod shells\n- (B) orchids\n- (C) invertebrates\n- (D) swamp vegetation\n- (E) Most plants\n- (F) insects\n- (G) barnacles\n- (H) animals

Answer: (C)

Mollusks are a major food source for other organisms, including humans. Mollusks are invertebrates and are no exception. Invertebrates are a major food source for other organisms, including humans.


Question: When game animals move elsewhere, what else does?\nOptions:\n- (A) relocation\n- (B) prey animals\n- (C) predatory animals\n- (D) migratory birds\n- (E) An object is seen\n- (F) migrants\n- (G) refract or absorb.\n- (H) barks and snarls

Answer: (C)

Migration is a type of movement that changes population size. Predatory animals migrate with the game animals. As movement causes a change in game population size, predatory population size changes, too.


Question: Escaping poor weather and food supply changes what?\nOptions:\n- (A) population age\n- (B) the environment\n- (C) population education\n- (D) general preferences\n- (E) important habitats\n- (F) population size\n- (G) movement\n- (H) an organism's body

Answer: (F)

Migration is a type of movement that changes population size. Birds migrate to escape poor weather and food supply. Escaping poor weather and food supply changes population size.


Question: What can happen to a population when animals begin to migrate?\nOptions:\n- (A) It expands\n- (B) harm them\n- (C) it can change species\n- (D) Move to another area\n- (E) it can eat more\n- (F) it can go extinct\n- (G) it can fluctuate\n- (H) Plant growth is reduced

Answer: (G)

Migration is a type of movement that changes population size. Population viability Population sizes are under constant fluctuation. Migration is a type of movement that causes a population to fluctuate.


Question: When insects move from one place to another, this usually causes\nOptions:\n- (A) seed dispersal\n- (B) Transfers energy\n- (C) change in mood\n- (D) death and devastation\n- (E) change in population size\n- (F) change in individual insect\n- (G) change in shape\n- (H) converting mass to energy

Answer: (E)

Migration is a type of movement that changes population size. Insects can also migrate. Insects sometimes change population size by moving from one place to another.


Question: What type of creatures have sexual reproduction as part of their life cycle?\nOptions:\n- (A) plants\n- (B) insects\n- (C) proteins\n- (D) ducks\n- (E) animals\n- (F) gametes\n- (G) prions\n- (H) fungi

Answer: (B)

Arthropods have a life cycle with sexual reproduction. Insects are the largest group of arthropods. Insects have a life cycle with sexual reproduction.


Question: Arthropods have a life cycle with what?\nOptions:\n- (A) rapid expansion\n- (B) survival\n- (C) aerobic capacity\n- (D) food and shelter\n- (E) an organism's body\n- (F) reproduce\n- (G) barnacles\n- (H) mixing genes up

Answer: (H)

Arthropods have a life cycle with sexual reproduction. Sexual reproduction mixes the genes up more than is possible with asexual reproduction. Arthropods have a life cycle with mixing genes up.


Question: What do snails and slugs lack?\nOptions:\n- (A) eyes\n- (B) a nervous system\n- (C) kinetic energy\n- (D) Chlorophyll\n- (E) Energy.\n- (F) life\n- (G) a backbone\n- (H) Energy

Answer: (G)

Invertebrates are animals that lack a vertebral column, or backbone. Snails and slugs are invertebrates. Snails and slugs lack a backbone.


Question: What lacks a vertebral column, or backbone?\nOptions:\n- (A) fungi\n- (B) parasites\n- (C) cacti\n- (D) Leptospirosis\n- (E) insects\n- (F) bushes\n- (G) Conifers\n- (H) anostrans

Answer: (H)

Invertebrates are animals that lack a vertebral column, or backbone. Principal invertebrates are anostracans and ostracods. Anostrans lack a vertebral column, or backbone.


Question: Mammals generate heat mainly by what?\nOptions:\n- (A) hugging mammals\n- (B) calorie counting\n- (C) with their fur\n- (D) energy of moving objects\n- (E) burning calories\n- (F) sweating\n- (G) selling fur coats\n- (H) flow of electrons

Answer: (E)

Mammals generate heat mainly by keeping their metabolic rate high. And resting metabolic rate is a big contributor to calories burning. Mammals generate heat mainly by burning calories.


Question: What is the result of a dolphin keeping a high metabolism rate?\nOptions:\n- (A) generate blood cells\n- (B) generate heat\n- (C) overheating\n- (D) develop cancer\n- (E) kinetic energy\n- (F) aerobic capacity\n- (G) exercise\n- (H) Energy.

Answer: (B)

Mammals generate heat mainly by keeping their metabolic rate high. All dolphins are mammals and all mammals breathe air. Dolphins generate heat by keeping their metabolic rate high.


Question: Running water is better able to dissolve oxygen and nutrients than what?\nOptions:\n- (A) pouring water\n- (B) scarce resources\n- (C) ocean water\n- (D) river water\n- (E) acetic acid\n- (F) Veins and arteries.\n- (G) an organism's body\n- (H) stagnant water

Answer: (H)

Running water is better able to dissolve oxygen and nutrients than standing water. If the water stands still and becomes stagnant, it can become a breeding ground for mosquitoes. Running water is better able to dissolve oxygen and nutrients than stagnant water.


Question: What is better able to dissolve oxygen and nutrients than standing water?\nOptions:\n- (A) puddles\n- (B) microorganisms\n- (C) ponds\n- (D) nitrogen\n- (E) swamp vegetation\n- (F) Veins and arteries.\n- (G) streams and creeks\n- (H) peachleaf willow

Answer: (G)

Running water is better able to dissolve oxygen and nutrients than standing water. Streams and creeks provide running water. Streams and creeks are better able to dissolve oxygen and nutrients than standing water.


Question: Which body of water would be able to dissolve oxygen and nutrients the best?\nOptions:\n- (A) NaCl\n- (B) Lake\n- (C) Puddle\n- (D) Pond\n- (E) rain\n- (F) CO 2\n- (G) River\n- (H) sugar

Answer: (G)

Running water is better able to dissolve oxygen and nutrients than standing water. Also, running water in rivers is the major force of erosion on the surface of the earth. Rivers are better able to dissolve oxygen and nutrients than standing water.


Question: What can better dissolve nutrients and oxygen?\nOptions:\n- (A) lakes\n- (B) SO2\n- (C) Raft\n- (D) a solute\n- (E) puddles\n- (F) rivers\n- (G) currents\n- (H) lochs

Answer: (F)

Running water is better able to dissolve oxygen and nutrients than standing water. Large, warm rivers hold populations but few occur in cold running water. Rivers can better dissolve oxygen and nutrients than lakes.


Question: Running water is able to do what to minerals and oxygen?\nOptions:\n- (A) evaporation\n- (B) dissolve them\n- (C) reducing acid rain\n- (D) recycling\n- (E) clean them\n- (F) separate them\n- (G) hydration\n- (H) cool them

Answer: (B)

Running water is better able to dissolve oxygen and nutrients than standing water. Mineral nutrients are interrelated. Running water is better able to dissolve oxygen and minerals than standing water.


Question: For plants, what is the difference between running and standing water?\nOptions:\n- (A) wind and rain\n- (B) precipitation\n- (C) distance\n- (D) healthier\n- (E) seasons\n- (F) temperature\n- (G) heat produced\n- (H) root growth

Answer: (D)

Running water is better able to dissolve oxygen and nutrients than standing water. To make it rich in nutrients so the plants are healthier. Running water is healthier for plants than standing water.


Question: Rivers easily dissolve nutrients and:\nOptions:\n- (A) bacteria\n- (B) chemicals\n- (C) oxygen\n- (D) sodium\n- (E) vitamin C\n- (F) glucose\n- (G) a solute\n- (H) a hazard

Answer: (C)

Running water is better able to dissolve oxygen and nutrients than standing water. Large, warm rivers hold populations but few occur in cold running water. Oxygen and nutrients dissolve easily in rivers.


Question: Vessels that bring blood to the hard have lower blood pressure than\nOptions:\n- (A) the skin\n- (B) arteries\n- (C) archery\n- (D) heat or cold\n- (E) exercise\n- (F) artefact\n- (G) artesan\n- (H) lungs

Answer: (B)

Blood pressure is highest in arteries and lowest in veins. Veins are vessels that bring blood to the heart. Vessels that bring blood to the heart have lower blood pressure than arteries.


Question: Where is force on the vessel walls highest?\nOptions:\n- (A) arteries\n- (B) feet\n- (C) resistance\n- (D) tibial vein\n- (E) strong\n- (F) capillaries\n- (G) femoral vein\n- (H) Summer

Answer: (A)

Blood pressure is highest in arteries and lowest in veins. What is Blood Pressure Blood pressure is the pressure on the blood vessel walls. Force on the vessel walls is highest in arteries and lowest in veins.


Question: What is one way billions of seeds be spread by?\nOptions:\n- (A) wind\n- (B) manufactured goods\n- (C) fossilization\n- (D) maples\n- (E) range\n- (F) Seesaw\n- (G) hail\n- (H) trees

Answer: (A)

Spores may be dispersed by moving water, wind, or other organisms. Billions of spores can be produced on a single spore horn. Billions of seeds can be spread by moving wind, other organisms, or water.


Question: What organ is harmed by air pollution?\nOptions:\n- (A) piano\n- (B) church organ\n- (C) heart\n- (D) harp\n- (E) bushes\n- (F) animals\n- (G) eardrum\n- (H) lungs

Answer: (C)

Air pollution harms the respiratory and circulatory systems. Sulfur dioxide can irritate the respiratory system and damage the heart and circulatory system. Air pollution damages the heart.


Question: What harms the respiratory and circulatory systems?\nOptions:\n- (A) Greenhouse gasses\n- (B) burning coal\n- (C) inoculation\n- (D) incinerated mercury\n- (E) fossil fuels\n- (F) water vapor\n- (G) Sulfur dioxide\n- (H) air

Answer: (D)

Air pollution harms the respiratory and circulatory systems. Incinerated mercury pollutes the air. Incinerated mercury harms the respiratory and circulatory systems.


Question: What harms the respiratory and circulatory systems?\nOptions:\n- (A) oil\n- (B) rain\n- (C) sulfur\n- (D) cars\n- (E) tires\n- (F) coal\n- (G) tar\n- (H) bicycles

Answer: (D)

Air pollution harms the respiratory and circulatory systems. Cars are a significant source of air pollution. Cars harm the respiratory and circulatory systems.


Question: What systems are pollutants bad for?\nOptions:\n- (A) destroying life\n- (B) classification system\n- (C) an organism's body\n- (D) respiratory and circulatory\n- (E) animal habitats\n- (F) ambulatory systems\n- (G) social security system\n- (H) the environment

Answer: (D)

Air pollution harms the respiratory and circulatory systems. Air pollution is caused by lots of different pollutants. Several different pollutants harm the respiratory and circulatory systems.


Question: Harm to the respiratory and circulatory systems can come from \nOptions:\n- (A) Greenhouse gases\n- (B) hydrocarbons\n- (C) Sulfur dioxide\n- (D) nitrogen oxides\n- (E) burning coal\n- (F) fossil fuels\n- (G) emissions\n- (H) Greenhouse gasses

Answer: (D)

Air pollution harms the respiratory and circulatory systems. Nitrogen oxides cause air pollution. Nitrogen oxides harms the respiratory and circulatory systems.


Question: What affects the respiratory and circulatory systems in the body?\nOptions:\n- (A) HIV\n- (B) sulfur\n- (C) smog\n- (D) stress\n- (E) fever\n- (F) sweat\n- (G) heat\n- (H) tar

Answer: (C)

Air pollution harms the respiratory and circulatory systems. An example of an air pollution reaction is the production of photochemical smog. Smog harms the respiratory and circulatory systems.


Question: Some what with feathers are pollinators?\nOptions:\n- (A) bees\n- (B) tortoises\n- (C) fish\n- (D) snakes\n- (E) strong\n- (F) ducks\n- (G) Vanes\n- (H) animals

Answer: (H)

Some birds are pollinators that co-evolved with plants. Bird A bird is an animal with feathers. Some animals with feathers are pollinators.


Question: Hummingbirds are what they are today as a necessary consequence of their relationship to what?\nOptions:\n- (A) a feeder\n- (B) humans\n- (C) bees\n- (D) survival\n- (E) animals\n- (F) Plants\n- (G) Earth\n- (H) weeds

Answer: (F)

Some birds are pollinators that co-evolved with plants. Hummingbirds are the most common bird pollinators. Hummingbirds co-evolved with plants.


Question: Some birds are pollinators that co-evolved with what other type of organism?\nOptions:\n- (A) animals\n- (B) humans\n- (C) vegetation\n- (D) producers\n- (E) parasites\n- (F) warm-blooded\n- (G) Conifers\n- (H) mammals

Answer: (D)

Some birds are pollinators that co-evolved with plants. If the plant is green, it is a producer. Some birds are pollinators that co-evolved with producers.


Question: What sea creature can sometimes be microscopic?\nOptions:\n- (A) squids\n- (B) a fish\n- (C) fungi\n- (D) tortoises\n- (E) fossils\n- (F) barnacles\n- (G) bacteria\n- (H) alpacas

Answer: (A)

Some mollusks are nearly microscopic. Interestingly, a squid is also a mollusk. Some squids are nearly microscopic.


Question: What occurs through birth and death?\nOptions:\n- (A) sleep\n- (B) illness\n- (C) anemia\n- (D) tearing\n- (E) Leptospirosis\n- (F) nature\n- (G) starvation\n- (H) evolution

Answer: (H)

Evolution occurs by a process called natural selection. Birth and death are natural processes. Evolution occurs through birth and death.


Question: What leads to evolution?\nOptions:\n- (A) Plants growth\n- (B) competition\n- (C) Adatation\n- (D) our star\n- (E) Experimentation\n- (F) Stagnation\n- (G) environment\n- (H) Information

Answer: (C)

Evolution occurs by a process called natural selection. Adaptation is the result of natural selection. Adaptation results in evolution.


Question: Changing in animals occurs by a process called what?\nOptions:\n- (A) world climate change\n- (B) It helps them survive\n- (C) natural selection\n- (D) Leptospirosis\n- (E) ozone\n- (F) relocation\n- (G) permineralization\n- (H) animal growth

Answer: (C)

Evolution occurs by a process called natural selection. Actually, evolution is adaptation to change. Changing occurs by a process called natural selection.


Question: What is usually chosen in evolution?\nOptions:\n- (A) common traits\n- (B) Plant reproduction\n- (C) advantageous systems\n- (D) undesirable traits\n- (E) Animal survival\n- (F) competition\n- (G) mysterious sytems\n- (H) Earth revolving around the sun

Answer: (C)

Evolution occurs by a process called natural selection. Natural selection only selects functionally advantageous systems. In evolution only functionally advantageous systems are selected.


Question: What do many plants do to respond to the shorter days in fall?\nOptions:\n- (A) go through a resting period\n- (B) changing the phase\n- (C) Release energy\n- (D) Generating heat\n- (E) produce more pollen\n- (F) colder and wetter\n- (G) grow taller\n- (H) make more chlorophyll

Answer: (A)

Many plants respond to the days growing shorter in the fall by going dormant. Plants can be divided at any time, although the dormant or rest period is best. Many plants respond to the days growing shorter in the fall by going through a rest period.


Question: How do many plants respond to days getting shorter in autumn?\nOptions:\n- (A) Change colors\n- (B) spread seed\n- (C) Exfoliation\n- (D) bioaerosols\n- (E) grow a layer of fur\n- (F) go dormant\n- (G) adding heat\n- (H) enlarge themselves

Answer: (F)

Many plants respond to the days growing shorter in the fall by going dormant. Autumn or Fall is already here. Many plants respond to the days growing shorter in the autumn by going dormant.


Question: Many plants respond to the days growing shorted by doing what?\nOptions:\n- (A) colder and wetter\n- (B) scattering seeds\n- (C) resistance activities\n- (D) Decrease bodily water\n- (E) evaporation\n- (F) Exfoliation\n- (G) bending light rays\n- (H) reusing materials

Answer: (B)

Many plants respond to the days growing shorter in the fall by going dormant. When the growing season ends, plants become dormant or scatter seeds and die. Many plants respond to the days growing shorted by scattering seeds.


Question: Many plants go dormant during the \nOptions:\n- (A) heat or cold\n- (B) earth's revolving\n- (C) autumnal equinox\n- (D) colder and wetter\n- (E) It helps them survive\n- (F) cloudy and rainy weather\n- (G) Plant growth is reduced\n- (H) fire conditions

Answer: (C)

Many plants respond to the days growing shorter in the fall by going dormant. After the autumnal equinox, days gradually shorten in the Northern Hemisphere. Many plants respond to the autumnal equinox by going dormant.


Question: Roundworms can be free-living or live on a what?\nOptions:\n- (A) soil\n- (B) nest\n- (C) host\n- (D) root\n- (E) stem\n- (F) habitat\n- (G) food\n- (H) commune

Answer: (C)

Roundworms may be free-living or parasitic. Parasites Shortfin makos host a variety of parasitic copepods. Roundworms may be living on a host or free-living.


Question: What might puppies and kitties have?\nOptions:\n- (A) They have thick fur\n- (B) leeches\n- (C) Animal fur\n- (D) fur and fat\n- (E) sensory neurons\n- (F) parasitic snakes\n- (G) crickets\n- (H) parasitic worms

Answer: (H)

Roundworms may be free-living or parasitic. Roundworms Nearly all puppies and kittens have roundworms. Puppies and kittens may have parasitic worms.


Question: Members of the apoda order can be found in _.\nOptions:\n- (A) rivers in tundra regions.\n- (B) They have webbed feet\n- (C) female sex cells\n- (D) epidermis and dermis\n- (E) rivers in arid regions.\n- (F) streams in arid regions.\n- (G) microorganisms\n- (H) streams in tropical regions

Answer: (H)

Caecilians can be found in moist soil near rivers and streams in tropical regions. Caecilians belong to the order Apoda or Gymnophiona. Members of the Apoda order can be found in streams in tropical regions.


Question: Where can amphibians that move like earthworms be found?\nOptions:\n- (A) moist bodies\n- (B) body water\n- (C) storing water\n- (D) during the day\n- (E) four limbs\n- (F) moist soil\n- (G) dry areas\n- (H) high altitudes

Answer: (F)

Caecilians can be found in moist soil near rivers and streams in tropical regions. Caecilians are amphibians that move just like earthworms. Amphibians that move like earthworms can be found in moist soil near rivers and streams in tropical regions.


Question: What can be found in moist soil near rivers and streams in tropical regions?\nOptions:\n- (A) storing water\n- (B) a fish\n- (C) insects\n- (D) Most plants\n- (E) shrub beds\n- (F) bioaerosols\n- (G) ferns\n- (H) reptilians

Answer: (H)

Caecilians can be found in moist soil near rivers and streams in tropical regions. Salamanders, frogs, toads, caecilians Class Reptilia. Reptilians can be found in moist soil near rivers and streams in tropical regions.


Question: Where in tropical regions can you find cobra bobo?\nOptions:\n- (A) an organism's body\n- (B) more abundant\n- (C) layers of fat\n- (D) swamp vegetation\n- (E) colder and wetter\n- (F) Wet weather\n- (G) in moist soil\n- (H) dry conditions

Answer: (G)

Caecilians can be found in moist soil near rivers and streams in tropical regions. Cobra bobo is the local name for caecilian. Cobra bobos can be found in moist soil near rivers and streams in tropical regions.


Question: What brings the building blocks of proteins to the ribosomes in the correct sequence?\nOptions:\n- (A) recycling\n- (B) flow of electrons\n- (C) Chemical energy\n- (D) it needs them\n- (E) an engine\n- (F) light energy\n- (G) A computer\n- (H) molecules of tRNA

Answer: (H)

Molecules of tRNA bring amino acids to the ribosome in the correct sequence. Amino Acids Amino acids are the building blocks of proteins. Molecules of tRNA bring the building blocks of proteins to the ribosome in the correct sequence.


Question: Molecules of _ bring the building blocks of protein to the ribosomes in the correct sequence.\nOptions:\n- (A) form\n- (B) fusion\n- (C) core\n- (D) shape\n- (E) sugar\n- (F) HIV\n- (G) tRNA\n- (H) small

Answer: (G)

Molecules of tRNA bring amino acids to the ribosome in the correct sequence. Amino Acids Amino acids are the building blocks of proteins. Molecules of tRNA bring the building blocks of proteins to the ribosome in the correct sequence.


Question: Trna and the ribosome work to produce:\nOptions:\n- (A) A kernel\n- (B) protein\n- (C) food\n- (D) Energy.\n- (E) power\n- (F) Joules\n- (G) alleles\n- (H) Energy

Answer: (B)

Molecules of tRNA bring amino acids to the ribosome in the correct sequence. Ribosome binding site, start and stop codons, protein coding sequence. Molecules of tRNA bring amino acids to the ribosome to create proteins.


Question: Molecules of trna and amino acids are assembled where?\nOptions:\n- (A) nucleoli\n- (B) A computer\n- (C) Cooking\n- (D) Most plants\n- (E) boiling\n- (F) animals\n- (G) Power plants\n- (H) retina

Answer: (A)

Molecules of tRNA bring amino acids to the ribosome in the correct sequence. Ribosomes are assembled in the nucleoli. Molecules of tRNA and amino acids are assembled in the nucleoli.


Question: What happens when muscular walls of arteries and veins contract?\nOptions:\n- (A) connection\n- (B) It expands\n- (C) Dehydration\n- (D) construction\n- (E) forces\n- (F) massive damage\n- (G) constriction\n- (H) contraction

Answer: (G)

Constriction occurs when the muscular walls of blood vessels contract. Arteries and veins are blood vessels. Constriction happens when the muscular walls of arteries and veins contract.


Question: Antibodies are large, y-shaped proteins that recognize and bind to:\nOptions:\n- (A) humans\n- (B) A Greek letter\n- (C) bones\n- (D) the skin\n- (E) animals\n- (F) inorganic items\n- (G) immunogens\n- (H) water

Answer: (G)

Antibodies are large, Y-shaped proteins that recognize and bind to antigens. ALL immunogens are antigens. Antibodies are large, Y-shaped proteins that recognize and bind to immunogens.


Question: _ bind to allergens.\nOptions:\n- (A) to stay warm\n- (B) mammals\n- (C) fur and fat\n- (D) animals\n- (E) protect them\n- (F) Most plants\n- (G) Antibodies\n- (H) Chemical energy

Answer: (G)

Antibodies are large, Y-shaped proteins that recognize and bind to antigens. Allergens are also called Antigens. Antibodies bind to allergens.


Question: The tobacco mosaic virus cannot _ by itself.\nOptions:\n- (A) migrate\n- (B) reproduce\n- (C) move\n- (D) consume\n- (E) It expands\n- (F) animals\n- (G) survive\n- (H) respirate

Answer: (B)

Viruses cannot reproduce by themselves. Viruses include the Tobacco Mosaic Virus. The Tobacco Mosaic Virus cannot reproduce by itself.


Question: Viruses cannot do what by themselves?\nOptions:\n- (A) make people sick\n- (B) survive\n- (C) dangerous\n- (D) interact with cells\n- (E) migrate\n- (F) kill them\n- (G) cause a viral infection\n- (H) multiply

Answer: (H)

Viruses cannot reproduce by themselves. Passwords multiply and reproduce amongst themselves. Viruses cannot multiply by themselves.


Question: How can viruses make copies of themselves?\nOptions:\n- (A) A compound that donates proton\n- (B) attach themselves to cells\n- (C) have sex with another virus\n- (D) distances themselves from cell\n- (E) attach themselves to viruses\n- (F) it needs them\n- (G) rapid expansion\n- (H) By wind and rain

Answer: (B)

Viruses cannot reproduce by themselves. Viruses attach themselves to cells and reproduce. Viruses cannot make copies of themselves alone. They need to attach themselves to cells.


Question: Which of these diseases cannot reproduce by itself?\nOptions:\n- (A) fever\n- (B) Leptospirosis\n- (C) animals\n- (D) influenza\n- (E) bacteria\n- (F) heat or cold\n- (G) dangerous\n- (H) anemia

Answer: (D)

Viruses cannot reproduce by themselves. Influenza is a disease caused by viruses. Influenza is a disease that cannot reproduce by itself.


Question: What can live in salt water?\nOptions:\n- (A) otters\n- (B) spider\n- (C) amoeba\n- (D) clam\n- (E) alligator\n- (F) ducks\n- (G) goldfish\n- (H) voles

Answer: (D)

Mollusks live in most terrestrial, freshwater, and marine habitats. Mollusks tend to be shore-dwelling creatures. Clams tend to be shore-dwelling creatures and can live in both sea and freshwater.


Question: What kind of animal lives in most terrestrial, freshwater and marine habitats?\nOptions:\n- (A) animals\n- (B) swimming\n- (C) snails\n- (D) tortoises\n- (E) barnacles\n- (F) swea\n- (G) protected\n- (H) a fish

Answer: (C)

Mollusks live in most terrestrial, freshwater, and marine habitats. Mollusks in the diorama include snails and clams. Snails live in most terrestrial, freshwater and marine habitats.


Question: What contains the green compound chlorophyll?\nOptions:\n- (A) mitochondria\n- (B) Most plants\n- (C) vacuoles\n- (D) color of leaves\n- (E) cell walls\n- (F) peachleaf willow\n- (G) In their leaves\n- (H) chloroplasts

Answer: (H)

Chloroplasts contain the green pigment chlorophyll. Photosynthetic Pigments Photosynthetic Pigments Pigments are colorful compounds. Chloroplasts contain the green compound chlorophyll.


Question: What contains the green pigment chlorophyll?\nOptions:\n- (A) seeds\n- (B) orchids\n- (C) barnacles\n- (D) cacti\n- (E) plastids\n- (F) ferns\n- (G) Most plants\n- (H) bioaerosols

Answer: (E)

Chloroplasts contain the green pigment chlorophyll. Chloroplasts are the most familiar plastids. Plastids contain the green pigment chlorophyll.


Question: What tells a cell what to do?\nOptions:\n- (A) breathe\n- (B) alleles\n- (C) Energy\n- (D) voltage\n- (E) fever\n- (F) genes\n- (G) nerves\n- (H) state

Answer: (F)

Molecules of DNA are encoded with instructions that tell cells what to do. Genes are parts of DNA molecules. Genes are instructions that tell cells what to do.


Question: What tells a cell what to do?\nOptions:\n- (A) electricity\n- (B) proteins\n- (C) A computer\n- (D) Energy\n- (E) nerves\n- (F) sweating\n- (G) heat energy\n- (H) Energy.

Answer: (B)

Molecules of DNA are encoded with instructions that tell cells what to do. DNA encodes the information for protein sequences. Proteins tell cells what to do.


Question: Molecules of what are encoded with instructions that tell cells what to do?\nOptions:\n- (A) Earth revolving around the sun\n- (B) A compound that donates proton\n- (C) Something that comes in a bundle of fibers\n- (D) A person's genetic fingerprint\n- (E) characteristics\n- (F) a hemisphere is tilted away from the sun\n- (G) Electrical energy\n- (H) it helps plants in growing

Answer: (D)

Molecules of DNA are encoded with instructions that tell cells what to do. DNA DNA DNA is a person's genetic fingerprint. Molecules of a person's genetic fingerprint are encoded with instructions that tell cells what to do.


Question: Where so parasites go to survive?\nOptions:\n- (A) in a field\n- (B) away from a host\n- (C) heat produced\n- (D) loose soil\n- (E) in the water\n- (F) on a host\n- (G) Most plants\n- (H) retina

Answer: (F)

Some parasites live on the surface of their host. Survival is to live, to live means hope. Some parasites survive on the surface of their host.


Question: What unwanted creature would be found on the surface of a human body using it as a host? \nOptions:\n- (A) Tapeworm.\n- (B) Leeches.\n- (C) Pesticides\n- (D) animals\n- (E) insects\n- (F) Hookworm\n- (G) bacteria\n- (H) Bracelet.

Answer: (B)

Some parasites live on the surface of their host. Leeches are external parasites. Leeches are on the surface of the host .


Question: Where do leeches live in relation to their hosts?\nOptions:\n- (A) In their beds\n- (B) body water\n- (C) competing for resources\n- (D) In their shoes\n- (E) loose soil\n- (F) In their intestines\n- (G) important habitats\n- (H) On their surface

Answer: (H)

Some parasites live on the surface of their host. Leeches are external parasites. Leeches live on the surface of their hosts.


Question: Fertilization occurs when _ fuse.\nOptions:\n- (A) fertile\n- (B) sperm ducts\n- (C) heat\n- (D) eggs\n- (E) seeds\n- (F) gametes\n- (G) pollen\n- (H) ovaries

Answer: (F)

Fertilization occurs when a sperm and an egg fuse. Sperm and eggs are cells known as gametes. Fertilization occurs when gametes fuse.


Question: Growth hormones are derived from phospholipds and:\nOptions:\n- (A) Energy.\n- (B) cholesterol\n- (C) animals\n- (D) layers of fat\n- (E) fur and fat\n- (F) Chemical energy\n- (G) kinetic energy\n- (H) Energy

Answer: (B)

Steroid hormones are made of lipids, such as phospholipids and cholesterol. Steroids are a kind of growth hormones. Growth hormones are derived from phospholipids and cholesterol.