Although the morphological species concept is useful, it's not fool-proof.

尽管形态物种概念很有用，但并非万无一失。

This definition can address some of the issues associated with the morphological species concept.

这个定义可以解决一些与形态物种概念相关的问题。

One of the main problems with the morphological species concept is that members of one species may be split up because they look different.

形态学物种概念的主要问题之一是，一个物种的成员可能会因为看起来不同而分裂。