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系统分类学

维基百科,自由的百科全书

进化概念和表形概念的比较。
进化概念和表形概念的比较。

系统分类学(英语:systematics)是研究物种演化历史,以及他与其它物种间的关系的学科,此亲缘关系被可视化为具支序的演化树(别名:系统发生树,系统发育)。系统发育有两个组成部分,分支顺序(显示组的关系)和分支长度(显示进化的量)。利用生物物种在不同的环境,地区进行不同的演化,以基因或是基因产物,也就是蛋白质的资讯,将物种演化的历史进行解析。比方说形态上的演化倾向等等。

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系统分类学
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