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Postadaptation |
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Postadaptation
evolutionary changes of organisms that improve a species’ adaptation to an already familiar habitat or that improve a function of an organ. Postadaptation is contrasted to preadaptation, which is a chance side effect of postadaptation and which prepares an organ for new functions or an organism for adaptation to new environmental conditions. Thus, preadaptation of an organism to a new environment or of an organ to a new function is based on post-adaptation to the previous environment or to the previous function of the organ. Both postadaptation and preadaptation are controlled by the process of natural selection; postadaptation is its immediate result, while preadaptation is an indirect and chance consequence. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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