Term
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Definition
| The process by which many new species arise in a relatively short time. |
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Term
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Definition
| A hypothetical mechanism for the origin of new species in which two populations are geographically seperated from one another. |
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Term
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Definition
| The death of the last of a species' members. |
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Term
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Definition
| The structural and behavioral modifications that prevent interbreeding and maintain reproductive isolation. |
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Term
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Definition
| The acquisition of multiple copies of each chromosome. |
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Term
| postmating isolating mechanisms |
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Definition
| Mechanisms that prevent the formation of vigorous fertile hybrids between species. |
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Term
| premating isolating mechanisms |
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Definition
| Mechanisms that prevent mating between species. |
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Term
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Definition
| The state of a population that is unable to interbreed with members of other populations. |
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Term
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Definition
| The process by which new species form. |
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Term
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Definition
| A group of populations that evolves independently. |
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Term
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Definition
| The hypothetical mechanism in which two populations share the same geographical area. |
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