Ecosystem and Environmental Science

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ecosystem

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a complex web of interconnected biotic and abiotic components. Changing one component in an ecosystem can affect many others.

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Autotroph

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Organisms that make their own food. Producer.

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Heterotroph

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An organism that cannot make its own food. Consumer.

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Producers

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organisms who make (or produce) their own food.

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Consumer

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An organism that obtains energy by feeding on other organisms.

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photoautotroph

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an organism that can harness sunlight to create energy via photosynthesis (e.g. plants).

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Herbivores

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organisms that eat plants.

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Decomposers

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organisms that break down organic matter into simpler compounds, but not by 'eating' the dead material.

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Detritivores

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organisms that eat detritus or dead organic matter.

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Omnivores

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animals that eat both plants and animals.