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objects colliding can disrupt those objects & an asteriod and an ecosystem are kinds of objects | an asteroid and an ecosystem colliding can disrupt that asteroid and ecosystem |
an asteriod impact can be a kind of event where an asteroid forcibly collides with an ecosystem & an asteroid and an ecosystem colliding can disrupt that asteroid and ecosystem | an asteriod impact can be a kind of event where an asteroid forcibly disrupts an ecosystem |
an asteriod impact can be a kind of event where an asteroid forcibly disrupts an ecosystem & an ecosystem contains large numbers of living organisms | an asteroid impact can be a kind of event where an asteroid forcibly disrupts an ecosystem and the organisms in it |
a forcible disruption of an ecosystem can cause a rapid extinction & an asteroid impact can be a kind of event where an asteroid forcibly disrupts an ecosystem and the organisms in it | an asteroid impact would cause a rapid extinction of organisms |
if a habitat can no longer support animals then those animals will move to another area0 & if an animal 's habitat no longer exists then that animal will die | if an animal's habitat no longer exists then that habitat can not support that animal |
if an animal's habitat no longer exists then that habitat can not support that animal & if something is destroyed then that something no longer exists | if a habitat is destroyed then that habitat can not support animals |
if a habitat is destroyed then that habitat can not support animals & if a habitat can no longer support animals then those animals will move to another area | habitat destruction causes animals to move to another habitat |
if a habitat can no longer support animals then those animals will move to another area1 & animals live in their habitat | animals' shelters are in their habitats |
habitat destruction causes animals to move to another habitat & animals' shelters are in their habitats | habitat destruction causes animals to move to find shelter in another habitat |
cutting down trees in a forest causes the number of trees to decrease in that forest & cutting down a forest means cutting down trees in a forest | cutting down a forest causes the number of trees to decrease in that forest |
cutting down a forest causes the number of trees to decrease in that forest & if a habitat can no longer support animals then those animals will move to another area2 | cutting down a forest is a kind of method for removing a forest |
cutting down a forest is a kind of method for removing a forest & if a habitat is removed then that habitat is destroyed | cutting down a forest will destroy a forest |
habitat destruction causes animals to move to find shelter in another habitat & cutting down a forest will destroy a forest | cutting down a forest causes animals that live in that forest to move to find shelter in another habitat |
a deer lives in a forest & a deer is a kind of animal | if an animal's habitat no longer exists then that habitat can not support that animal0: deer are a kind of animal that live in a forest |
if an animal's habitat no longer exists then that habitat can not support that animal0 & cutting down a forest causes animals that live in that forest to move to find shelter in another habitat | cutting down a forest causes deer to move to find shelter in another habitat |
if an organism requires something to perform a process, then increasing that something increases that organism's ability to perform that process & an aquatic animal is a kind of organism | if an aquatic animal requires something to perform a process, then increasing that something increases that aquatic animal's ability to perform that process |
if an aquatic animal requires something to perform a process, then increasing that something increases that aquatic animal's ability to perform that process & an aquatic animal requires great amounts of water to thrive | increasing the amount of water in an environment increases aquatic animals' ability to thrive in that environment |
increasing the amount of water in an environment increases aquatic animals' ability to thrive in that environment & if a species of animal is able to thrive in an environment, then the population of that animal will increase | as water increases in an environment , the population of aquatic animals will increase |
as water increases in an environment , the population of aquatic animals will increase & an otter is a kind of aquatic animal | as water increases in an environment, the population of otters will increase |
when a body of water receives more water than it can hold , a flood occurs & as the amount of rainfall increases in an area , the amount of available water in that area will increase | heavy rains cause flooding |
heavy rains cause flooding & floods are a source of water | flooding increases the amount of water in an environment |
as water increases in an environment, the population of otters will increase & flooding increases the amount of water in an environment | a flood will cause the population of otters to increase in an environment |
harming an organism can cause that organism to die & fire causes harm to organisms | fire can cause organisms to die |
fire can cause organisms to die & wildfire is when a forest catches fire | a wildfire can cause organisms to die |
a wildfire can cause organisms to die & an animal is a kind of organism | a wildfire can cause an animal to die |
a wildfire is a kind of natural disaster & natural disasters can cause animals to leave an environment | a wildfire can cause an animal to leave their environment |
a wildfire can cause an animal to die & a wildfire can cause an animal to leave their environment | a wildfire can cause an animal to die or leave their environment |
a wildfire can cause an animal to die or leave their environment & a wildfire can mean a forest fire | a forest fire can cause an animal to die or leave their environment |
drier means lower in amount of water & a dry environment is low in availability of water | as dryness increases in an environment , the available water in that environment will decrease |
as dryness increases in an environment , the available water in that environment will decrease & living things require water for survival | as dryness in an environment increases, the ability of living things to survive in that environment decreases due to a lack of available water |
as dryness in an environment increases, the ability of living things to survive in that environment decreases due to a lack of available water & storing water increases the water available to organisms in a dry environment | as a living thing's ability to store water increases, that living thing's ability to survive in a dry environment increases |
as a living thing's ability to store water increases, that living thing's ability to survive in a dry environment increases & if something increases something else then that something has a positive impact on that something else | ability to store water has a positive impact on an living thing's survival in a dry environment |
ability to store water has a positive impact on an living thing's survival in a dry environment & an adaptation has a positive impact on a living thing 's survival | ability to store water is a kind of adaptation to a dry environment |
if a body of water loses all water then that body of water does not exist any more & a pond is a kind of body of water | if a pond loses all water then that pond does not exist any more |
if a pond loses all water then that pond does not exist any more & drought is when available water decreases in an environment | a drought can cause a pond to no longer exist |
a drought can cause a pond to no longer exist & if an animal 's habitat no longer exists then that animal will die | a drought can cause animals that live in ponds to die |
aquatic animals live in bodies of water & a pond is a kind of body of water | aquatic animals live in ponds |
aquatic animals live in ponds & a frog is a kind of aquatic animal | a frog is a kind of aquatic animal that lives in ponds |
a frog is a kind of aquatic animal that lives in ponds & an aquatic animal is a kind of animal | a frog is a kind of animal that lives in ponds |
a drought can cause animals that live in ponds to die & a frog is a kind of animal that lives in ponds | a drought can cause frogs to die |
causing an animal to die has a negative effect on that animal & a frog is a kind of animal | causing a frog to die has a negative effect on that frog |
a drought can cause frogs to die & causing a frog to die has a negative effect on that frog | droughts have a negative effect on frogs |
organisms are biotic factors of an environment & natural resources can be abiotic factors of an environment | resources are generally abiotic factors of an environment and organisms are biotic features of an environment |
resources are generally abiotic factors of an environment and organisms are biotic features of an environment & changes to abiotic factors in an environment affect biotic factors in that environment | changes to resources in an environment affect organsims in that environment |
changes to resources in an environment affect organsims in that environment & a decrease is a kind of change | a decrease in resources in an environment affects organisms in that environment |
a decrease in resources in an environment affects organisms in that environment & organisms compete for resources in an environment | as a resource required by an organism decreases , the competition among organisms that require that resource will increase |
as a resource required by an organism decreases , the competition among organisms that require that resource will increase & a living thing is an organism | as a resource required by a living thing decreases, the competition among living things that require that resource will increase |
changes to abiotic factors in an environment affect biotic factors in that environment0 & living things require water for survival | water is a kind of resource that is required by living things |
as a resource required by a living thing decreases, the competition among living things that require that resource will increase & water is a kind of resource that is required by living things | as water in an evironment decreases, the competition among living things increases |
as water in an evironment decreases, the competition among living things increases & a consumer is a kind of living thing | as water in an evironment decreases, the competition among consumers increases |
as water in an evironment decreases, the competition among consumers increases & drought is when available water decreases in an environment | a drought causes competition among consumers to increase |
alligators eat frogs / turtles / fish / mice / birds & frogs / turtles / fish / mice / birds are kinds of animals | alligators eat animals |
alligators eat animals & a predator eats other animals for food | alligators are a kind of predator |
alligators are a kind of predator & as the population of prey decreases , competition between predators will increase | as the population of prey decreases , competition between alligators will increase |
an animal is a kind of organism & a species means a group of a certain kind of organism | a species means a group of a certain kind of animal |
a species means a group of a certain kind of animal & an alligator is a kind of animal | an alligator is a kind of species of animal |
an alligator is a kind of species of animal & competition may cause animals to act aggressively towards members of their own species | competition may cause alligators to act agressively towards members of their own species |
as the population of prey decreases , competition between alligators will increase & competition may cause alligators to act agressively towards members of their own species | as the population of prey decreases , agression between alligators will increase |
rainfall is the amount of rain an area receives & rain is a source of water | as the amount of rainfall increases in an area , the amount of available water in that area will increase |
as the amount of rainfall increases in an area , the amount of available water in that area will increase & as the available water in an environment increases , the populations of organisms in that environment will increase | as the amount of rainfall in an environment increases, the populations of organisms in that environment will increase |
as the amount of rainfall in an environment increases, the populations of organisms in that environment will increase & a plant is a kind of organism | as the amount of rainfall in an environment increases, the populations of plants in that environment will increase |
an organism 's environment affects that organism 's acquired characteristics & inherited characteristics are the opposite of acquired characteristics | an organism's environment does not affect that organism's inherited characteristics |
an organism's environment does not affect that organism's inherited characteristics & a plant is a kind of organism | an plant's environment does not affect that plant's inherited characteristics |
plants of the same species have the same type of seed & species is an inherited characteristic | the type of seed of a plant is an inherited characteristic |
an plant's environment does not affect that plant's inherited characteristics & the type of seed of a plant is an inherited characteristic | a plant's environment does not affect that plant's seed type |
a lack of something that a living thing requires prevents the survival of that living thing & a plant is a kind of living thing | a lack of something that a plant requires prevents the survival of that plant |
a lack of something that a plant requires prevents the survival of that plant & plants require water for survival | a lack of water prevents the survival of plants |
a lack of water prevents the survival of plants & a desert environment is low in availability of water | a lack of water prevents the survival of plants in the desert |
a lack of water prevents the survival of plants in the desert & moisture is a form of water | a lack of moisture prevents the survival of plants in the desert |
a drought occurs over a period of months / years & drought is when available water decreases in an environment | drought is when available water decreases in an environment over a period of months / years |
drought is when available water decreases in an environment over a period of months / years & as available water decreases , the population of plants will decrease | a drought that occurs over a period of months / years may cause the population of plants in an environment to decrease |
a drought that occurs over a period of months / years may cause the population of plants in an environment to decrease & a marsh willow herb is a kind of plant | a drought that occurs over a period of months / years may cause the population of marsh willow herb in an environment to decrease |
if an organism requires something then that something is a resource for that organism3 & climate is a property of environment | an environment's climate is the usual kind of weather in that environment over a period of time |
precipitation is a property of weather & temperature is a property of weather | temperature and precipitation are properties of weather |
temperature and precipitation are properties of weather & if an organism requires something then that something is a resource for that organism1 | weather determines temperature and precipitation |
an environment's climate is the usual kind of weather in that environment over a period of time & weather determines temperature and precipitation | an environment's climate determines the temperature and precipitation of a location |
clouds can block sunlight & precipitation is water that falls to the ground from clouds | precipitation can affect the amount of water and sunlight in an environment |
an environment's climate determines the temperature and precipitation of a location & precipitation can affect the amount of water and sunlight in an environment | an environment's climate determines the temperature and amount of water and sunlight in a location |
if an organism requires something then that something is a resource for that organism2 & a plant requires photosynthesis to grow / survive | a plant requires sunlight to grow / survive |
a plant requires sunlight to grow / survive & if an organism requires something then that something is a resource for that organism0 | plants require water and sunlight to grow / survive |
if an organism requires something then that something is a resource for that organism & a plant is a kind of organism | if a plant requires something then that something is a resource for that plant |
plants require water and sunlight to grow / survive & if a plant requires something then that something is a resource for that plant | an environment's climate is the usual kind of weather in that environment over a period of time0: water and sunlight are resources for plants |
an environment's climate is the usual kind of weather in that environment over a period of time0 & different plants require different amounts of certain resources to grow / survive | an environment's climate is the usual kind of weather in that environment over a period of time1: different plants require different amounts of water and sunlight to grow / survive |
an environment's climate is the usual kind of weather in that environment over a period of time1 & an environment's climate determines the temperature and amount of water and sunlight in a location | a plant requires a specific climate to grow and survive |
a hole is a kind of opening0 & sunlight is a kind of light | sunlight can not travel through an opaque object |
light can travel through an opening & sunlight is a kind of light | sunlight can travel through an opening |
sunlight can travel through an opening & a hole is a kind of opening | sunlight can travel through a hole |
sunlight can not travel through an opaque object & sunlight can travel through a hole | sunlight can travel through a hole in an opaque object |
sunlight can travel through a hole in an opaque object & a forest canopy is a kind of opaque object | sunlight can travel through a hole in a forest canopy |
sunlight can travel through a hole in a forest canopy & a tree falling in a forest creates a hole in a forest canopy | a tree falling in a forest allows sunlight to travel through that forest's canopy |
a tree falling in a forest allows sunlight to travel through that forest's canopy & large canopies / trees block sunlight from reaching the ground | a tree falling in a forest allows sunlight to reach the ground in some areas |
if a living thing dies then the resources used by that living thing will become available & if a tree falls then that tree is dead | if a tree falls then the resources used by that tree will become available |
if a tree falls then the resources used by that tree will become available & a tree requires sunlight to grow | if a tree falls then the sunlight that was used by that tree will become available |
a tree falling in a forest allows sunlight to reach the ground in some areas & if a tree falls then the sunlight that was used by that tree will become available | if a tree falls then sunlight becomes available to the surrounding plants |
algae are often restricted to the top 100 meters of the ocean & if an organism is restricted to an area then that organism can only live in that area | algae often can only live in the top 100 meters of the ocean |
algae often can only live in the top 100 meters of the ocean & sunlight can be found in the top 100 meters of the ocean | algae an sunlight often can only be found in the top 100 meters of the ocean |
solar energy is a kind of light & sunlight is a kind of light | sunlight is a kind of solar energy |
sunlight is a kind of solar energy & photosynthesis means producers / green plants convert from carbon dioxide and water and solar energy into carbohydrates and food and oxygen for themselves | a plant requires sunlight for photosynthesis |
a plant requires sunlight for photosynthesis & algae is a kind of plant | algae requires sunlight for photosynthesis |
algae an sunlight often can only be found in the top 100 meters of the ocean & algae requires sunlight for photosynthesis | algae often can only be found in the top 100 meters of the ocean because they require sunlight |