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Unit 7 Vocabulary
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biotic Organisms living or that had once lived in the environment (i.e., mouse, clover, dead tree)
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abiotic Non-living factors in the environment (i.e., light, temperature, water, atmospheric gases, wind, soil, and nature of land surface)
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habitat The place in which an animal lives
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ecosystem A biological community of interacting organisms and their physical environment.
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sustainability The capacity to endure. In ecology, the word describes how biological systems remain diverse and productive over time.
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biodiversity The variety of organisms in an ecosystem
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biome Large geographic areas with similar climates and ecosystems (i.e., desert, tundra, etc.)
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population Made up from all of the organisms in an ecosystem that belong to the same species
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ecosystem A smaller part of the biosphere consisting of the organisms and non-living features that interact in an area
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primary succession the development of biotic (living) communities in a previously uninhabited and barren habitat with little or no soil
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secondary succession The development of communities in an area that has been disturbed but still retains its topsoil, as in a burned-over area
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climax community An ecological community in which populations of plants or animals remain stable and exist in balance with each other and their environment. A climax community is the final stage of succession
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species All organisms of the same kind that adapted to a particular set of resources (called a niche) in the environment
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pioneer species The first species/organisms to grow in an area after a disturbance.
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microhabitat A small habitat that differs in character from some surrounding more extensive habitat.
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