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202 バイト追加 、 2015年1月19日 (月) 13:45
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== Definition ==
 
== Definition ==
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=== Glossary of Plant Systematics (1st ed.) by [[Simpson_2006|Simpson (2006)]] ===
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* A structure or feature that performs a particular function and which results in increased survival or reproduction.
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=== Glossary of Evolution (2nd ed.) by [[Futuyma_2009|Futuyma (2009)]] ===
 
=== Glossary of Evolution (2nd ed.) by [[Futuyma_2009|Futuyma (2009)]] ===
 
* A process of genetic change in a population whereby, as a result of natural selection, the average state of a character becomes improved with reference to a specific function, or whereby a population is thought to have become better suited to some feature of its environment.  Also, ''an'' adaptation: a feature that has become prevalent in a population because of a selective advantage conveyed by that feature in the improvement in some function.
 
* A process of genetic change in a population whereby, as a result of natural selection, the average state of a character becomes improved with reference to a specific function, or whereby a population is thought to have become better suited to some feature of its environment.  Also, ''an'' adaptation: a feature that has become prevalent in a population because of a selective advantage conveyed by that feature in the improvement in some function.