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20 Cards in this Set
- Front
- Back
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a material on Earth that is necessary or useful to people
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natural resource
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a resource that can be replaced or used over and over again
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renewable resource
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a resource that cannot be reused or replaced in a useful amount of time
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nonrenewable resource
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what happens when harmful substances get into water, air, or land
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pollution
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to make less of something
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reduce
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to use something again
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reuse
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to treat something so it can be used again
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recycle
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all the living and nonliving things in an environment
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ecosystem
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all the living things in a ecosystem
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community
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all the members of a certain type of living thing in an area
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population
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the place where a plant or animal naturally lives and grows
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habitat
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an organism that makes its own food
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producer
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an organism that eats producers or other consumers
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consumer
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a series of organisms that depend on one another for food
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food chain
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an organism that breaks down dead pant and animal material
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decomposer
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serveral food chains that are connected
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food web
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a diagram that shows how energy is used in an ecosystem
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energy pyramid
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the exchange of gases between producers and consumers
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carbon dioxide and oxygen cycle
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an organism that lives in or on another organism
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parasite
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the organism a parasite lives in or on
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host
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