The Blastocyst Differs from the Trophoblast in That the Blastocyst

Multiple Choice

The blastocyst differs from the trophoblast in that the blastocyst

A) is composed of an inner layer of cells that will finally develop into the embryo.
B) is the outermost layer of the embryo that will eventually produce the surface parts.
C) is the outer layer of cells that later provides nutrition and support for the embryo.
D) is a disk-shaped group of tissues in which small blood vessels from the mother and the offspring intertwine but do not join.