The Outer Layer of the Blastocyst That Can Penetrate the Endometrium

Question

The outer layer of the blastocyst that can penetrate the endometrium is the
A) archegonium.
B) chorion.
C) gastrula.
D) blastula.
E) trophoblast.

Accepted Answer

The trophoblast is the outer layer of the blastocyst that plays a crucial role in implantation by penetrating the endometrium of the uterus.