Topic 1-3 Key Terms

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ecology

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the study of how organisms interact with each other and their environment

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ecologist

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a scientist who studies interactions between the abiotic and biotic parts of the environment

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habitat

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the location where an organism lives

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adapted

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well-suited

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adaptation

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an inherited characteristic that helps an organism survive in its environment

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ecosystem

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all the interacting parts of a biological community and its environment

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symbiosis

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an interaction between organisms of different species living in close proximity to each other in a relationship that lasts over time

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mutualism

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a symbiotic relationship between two different types of organisms that is beneficial to both organisms

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parasitism

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a symbiotic relationship between two different types of organisms in which one of the partners is harmed and the other benefits

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parasite

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an organism that lives on or in another organism (the host) and feeds on it