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Notes: Biotic & Abiotic Factors
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A. Ecology
•The study of interactions between organisms and their environment.
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B. Ecosystem
•The living and the nonliving things in an area.
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C. Habitat
•The place where an organism lives and provides the needs for that organism.
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D. Abiotic Factors
•The nonliving factors that effect living things.
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•1. Water - all life processes depend on water.
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•2. Soil - determines the types of plants that can live in a certain location.
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•3. Sunlight - provides energy for all living things.
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•4. Temperature - determines the organisms that can live there.
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•5. Oxygen - most living things require it to live.
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E. Biotic Factors•The living things in the environment. Ex: plants and animals.
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F. Levels of Organization
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1. Organism
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2. Population•All the members of one species that lives in the same place at the same time.
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3. Community•All of the populations of different species that live in the same place (all biotic factors).
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4. Ecosystem•All of the biotic and abiotic factors in a particular area.
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5. Biosphere•All of the ecosystems on Earth where life is found (crust, water, and atmosphere).
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