問題詳情

22. Vertebrates and tunicates share?
(A) A notochord and a dorsal, hollow nerve cord
(B) The formation of structures from the neural crest
(C) A high degree of cephalization
(D) Jaws adapted for feeding

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