問題詳情

32. Which of the following is NOT a shared characteristic of all chordates?
(A) dorsal, hollow nerve cord.
(B) notochord.
(C) post-anal tail.
(D) pharyngeal slits.
(E) four-chambered heart.

參考答案

答案：E
難度：困難0.333333
統計：A(1),B(2),C(0),D(0),E(2)