問題詳情

3. "Which of following characteristics can distinguish protostome from deuterostome development?
(A) spiral cleavage.
(B) coelom formation.
(C) fate of the blastopore.
(D) A and B.
(E) A, Band C.

參考答案

答案：E
難度：困難0.272727
統計：A(1),B(0),C(1),D(1),E(3)