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7 Cards in this Set
- Front
- Back
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An organism that lives on or in another organism, helping itself but hurting the other organism.
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Parasite
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An organism that is harmed by a parasite.
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Host
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When two or more species in an ecosystem must use the same limited resources.
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Competition
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Substances that are very harmful to humans and other organisms.
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Hazardous Waste
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Gradual (slow) change from one community of organism to another.
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Succession
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No longer living, as an entire species.
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Extinct
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A species whose population has been reduced to such small numbers that it is endangered of becoming extinct (no longer existing).
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Endangered
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