The ________ is the outer layer of cells of the blastocyst that later provides nutrition and support for the embryo.
A) ectoderm
B) perineum
C) cytocyst
D) trophoblast

Question

Quizplus · Accepted Answer

The trophoblast is the outer layer of cells of the blastocyst that later provides nutrition and support for the embryo. Choices A and B are incorrect because the ectoderm refers to the outermost layer of cells in the early embryo that will give rise to the nervous system, skin, and hair, while the perineum is the region between the anus and external genitalia. Choice C is not a term used in embryology.

The ________ Is the Outer Layer of Cells of the Blastocyst