Biodiversity

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Biodiversity, aka biological diversity, usually refers to

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the number of different species in a given area

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Species that are clearly critical to the functioning of an ecosystem are known as:

biodiversity

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keystone species

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main species

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native species

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keystone species

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A species that is likely to become extinct if protective measures are not taken immediately is known as

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endangered species

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An exotic species is

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a species that is not native to a particular region

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A species that is not native to a particular region and has no natural predators and little competition.

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invasive species

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An endemic species is

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native and found only in a limited area

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Succession that occurs in areas that previously didn't support life, such as on rocks or ice.

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primary succession

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A common type of succession that occurs where an event such as a forest fire has occurred, or a farmer's field has been abandoned is called

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secondary succession

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What is a population?

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a group of the same species in the same geographic area.

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What is a community?

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Several different populations in the same geographic area