Ecosystem Terminology

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abiotic

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word that describes nonliving factors in an ecosystem

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biotic

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word that describes living factors in an ecosystem

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community

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all of the biotic organisms in an ecosystem

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competition

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the struggle between organisms for resources

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decomposers

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organisms that feed on dead matter

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food chain

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the simple flow of energy in an ecosystem

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food web

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diagram showing interconnected food chains in an ecosystem

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population

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all of the members of a given species in a community

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predation

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one organism killing and eating another organism

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symbiosis

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one organism living near, on or inside another organism