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17 Cards in this Set
- Front
- Back
inherit
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receiving of parents' genes
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mutation
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a change in an organism's genes
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structural adaptation
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a body part that helps the organism survive
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behavioral adaptation
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inherited behavior that helps animals survive
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pesticide
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poisons that kill insects
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extinct
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when there are no members of a kind of organism left alive
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how are ecosystems always changing?
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by organisms, wind, water, or other parts of the environment
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are all changes to an ecosystem harmful?
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no
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example of how people change ecosystems
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build houses, clear forests, throw out trash, bring in new plants and animals
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what plant can dominate forest floor, by preventing other plants from getting water and sunlight?
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garlic mustard plant
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landfill
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pile of garbage that is eventually covered with soil and grass
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today, what do liners in landfills do?
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seal off the garbage to keep harmful chemicals from getting into the ground.
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acid rain, how does it change ecosystems?
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rain that has absorbed certain kinds of pollutants.
it pollutes soils and lakes |
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T/F Ecosystems can be changed by humans as well as forces of nature.
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TRUE
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T/F When people introduce new animals or plants into an ecosystem, it changes.
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TRUE
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T/F The garbage in landfills decays quickly.
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FALSE
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T/F Acid rain is caused by water pollution.
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FALSE
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