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Ecology
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The study of the interrrelationships between plants, animals and the physical environment.
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Biotic Factors
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All living things that directly or indirectly affect the environment
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Abiotic Factors
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Physical and chemical factors that affect biotic factors.
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Population
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All the members of a species inhabiting a given area.
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Community
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All the interacting populations in a given area.
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Ecosystem
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The community and the abiotic factors functioning together.
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Biosphere
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The protion of the earth in which lilfe exists
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