There is a close analogy between the gills of a fish and the lungs of a mammal.


与哺乳动物
肺很相似。
There is a close analogy between the gills of a fish and the lungs of a mammal.


与哺乳动物
肺很相似。
The results show that the gill surface of all five species have frontal cilia,lateral cilia and laterofrontal cirri.
这5种蚌

面都有前纤
、侧纤
和前侧纤
。
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