問題詳情

4. Which of the following animal phyla is diploblastic, that is, exhibits only two cmbryonic germ layers?
(A) Rotifera
(B) Mollusca
(C) Nematoda
(D) Platyhelminthes
(E) Cnidaria

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增