Ecology and Ecosystems

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ecosystem

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groups of living and non living things in an area or environment

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population

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a group of the same species living in the same place at the same time

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community

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all the populations that live in the same area

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habitat

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an environment that meets the needs of an organism - its home

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niche

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the role or party played by an organism and its habitat

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producer

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a living thing such as a plant that makes its own food

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consumer

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a living thing that eats other living things for energy

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decomposer

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a living thing that feeds on the waste of plants and animals or on their remains after they die

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food web

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a diagram that shows how food chains connect and overlap

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food chain

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a diagram that shows how food energy moves from one living thing to the next