問題詳情

43. Development must occur in the order of which of the following sequences?
(A)morula  cleavage  gastrula  blastula
(B)gastrula  morula  blastula  cleavage
(C)cleavage  blastula  gastrula  morula 　　　
(D) cleavage  morula  blastula  gastrula
(E)cleavage  gastrula  morula  blastula

參考答案

答案：D
難度：適中0.659091
統計：A(0),B(3),C(2),D(29),E(2)

用户評論

【Gary】評論

分裂期 cleavage桑椹期morula原腸期blastula囊胚期gastrula