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20 Cards in this Set
- Front
- Back
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Individual
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A single organism in an environment.
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Population
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All the individuals of the same kind living in the same environment
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Community
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All the populations of organisms living together in an enviroment.
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Ecosystem
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A community and its physical enviroment together.
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Habitat
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A place in an ecosystem where a population lives.
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Niche
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The roll each population has in its habitat.
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Producer
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An organism that makes its own food.
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Consumer
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An organism in a community that must eat to get the energy it needs.
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Food chain
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The ways in which the organisms in a ecosystem interact with one another according to what they eat.
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Decomposer
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Consomer that breaks down the tissue of dead organisms.
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Food web
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Shows the interactions among many different food chains in a single ecosystem.
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Energy pyramid
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Shows the amount of energy available to pass from one level of a food chain to the next.
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Cometition
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The contest among organisms for the limited resources of an ecosystem.
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Symbiosis
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A long-term relationship between different kinds of organisms.
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Instinct
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A behavior that an organism inherits.
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Learned behavior
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A behavior an animal learns from its parents.
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Exotic
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An imported or nonnative organism.
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Extinct
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No longer in existence; describes a species when the last organism is gone forever.
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Endangered
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A term describing a population of organisms that is likely to become extinct if steps are not taken to save it.
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Threatened
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Describing a population of organisms that are likely to become endangered if they are not protected.
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