阿摩線上測驗
76. Which of the following statements concerning human embryonic development is correct?
(A) Inner cell mass is a group of cells that cluster at one end of the gastrula.
(B) The trophoblast, the outer epithelium of the gastrula, supports embryo growth.
(C) The trophoblast continues to expand into the endometrium, and four new extraembryonic membranes appear.
(D) By the end of blastocyst, three embryonic germ layers have formed.
(E) By the end of gastrulation, the extraembryonic ectoderm and extraembryonic membranes surround the embryo.
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統計： A(5), B(8), C(27), D(6), E(15) #938316
統計： A(5), B(8), C(27), D(6), E(15) #938316
詳解 (共 5 筆)
蔡金龍
#4889265
最佳解的答案是否（E）有錯誤？應為在原腸化結束時，胚外內胚層和胚外膜圍繞胚胎。
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