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Crash Course 植物学篇

And that path is represented by a single branch coming off of the tree, meaning that bryophytes are monophyletic — they share a single common ancestor and are all more closely related to each other than to any other plant group.

由一棵树上一个分支来表示,这意味着苔植物是单系——它们有一个共同祖先,彼此关系比与任何其他植物群体关系都要密切。

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