Biodiversity

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Biodiversity, aka biological diversity, usually refers to

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the variety of species on Earth

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A species that is not native to a particular region

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exotic

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species that are native to and found only within a limited area

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endemic

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A species at risk, but not yet endangered

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threatened

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Which of the following would be most effective in slowing the loss of biodiversity?

• creating large parks/preserves in biodiversity hotspots
• requiring every country to maintain a seed bank

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creating large parks/preserves in biodiversity hotspots

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In what part of the world are the greatest number of extinctions occurring? Options: in deserts, in the Arctic, in tropical rain forests

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in tropical rain forests

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According to biologists, what percentage of species have become or are expected to become extinct between 1900 and 2100?

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25%

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Why is biodiversity important to ecosystems?

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It helps populations adapt to ecological changes.

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Where are many critical biodiversity hotspots located?

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islands, tropical rain forests, and coastal areas

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What scenario is most likely to result in the lionfish having a major impact on the communities into which they were introduced?

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With no natural predators, the lionfish population will become very large.