Ecosystem Concepts Unit 8

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Ecosystem

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A biological community of interacting organisms and their physical environment.

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Abiotic Factors

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Non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems.

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Biotic

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Relating to or resulting from living organisms.

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Commensalism

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An association between two organisms in which one benefits and the other derives neither benefit nor harm.

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Community

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A group of interdependent organisms of different species growing or living together in a specified habitat.

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Mutualism

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Symbiosis that is beneficial to both organisms involved.

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Organism

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An individual animal, plant, or single-celled life form.

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Parasitism

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A relationship between two things in which one of them (the parasite) benefits from or lives off the other, like fleas on your dog.

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Population

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All the inhabitants of a particular town, area, or country.

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Predation

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The preying of one animal on others.