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Biodiversity

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variety of life in Earth's land, freshwater, and marine ecosystems

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Genetic diversity

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variation of genes within a species or population in a given area

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ecosystem diversity

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variety of ecosystems in a given area

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Species diversity

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both the number of different species and individuals of each species in a given area

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Ecosystem stability

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A healthy ecosystem with factors that stay mostly stable

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Which statement best describes an example of low species diversity?

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A marsh ecosystem is covered by a single species of cattail bulrushes

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Which statement best describes an example of high species diversity?

• A pond ecosystem is populated by a single species of frogs
• A state park includes multiple forest and freshwater ecosystems with many different species of fish, frogs, and birds
• A desert ecosystem is populated only by organ pipe cacti, camels, and armadillo lizards

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A state park includes multiple forest and freshwater ecosystems with many different species of fish, frogs, and birds

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Define mutualism

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symbiotic relationship where both organisms benefit from interaction

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commensalism

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symbiotic relationship where one organism benefits and the other is neither harmed nor benefited

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parasitism

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symbiotic relationship where one organism is harmed and one is benefited