The primitive ectoderm layer of the inner cell mass of the early embryo is also known as the
A)mesoderm
B)endoderm
C)notochord
D)epiblast
E)hypoblast

Question

Quizplus · Accepted Answer

The primitive ectoderm layer of the inner cell mass of the early embryo is also known as the epiblast. The mesoderm and endoderm layers are formed later in development, and the notochord is a structure that forms from the mesoderm. The hypoblast is a layer that forms below the epiblast in the early embryo.

The Primitive Ectoderm Layer of the Inner Cell Mass of the Early