問題詳情

17. Cells move to new positions as an embryo establishes its three germ tissue layers during _________.
(A) gastrulation
(B) cleavage
(C) fertilization
(D) induction
(E) differentiation

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