Uterine Implantation Due to Enzymatic Digestion of the Endometrium Is

Question

Uterine implantation due to enzymatic digestion of the endometrium is initiated by the
A)inner cell mass.
B)endoderm.
C)chorion.
D)mesoderm.
E)trophoblast.

Accepted Answer

Trophoblast cells secrete enzymes that digest the endometrial lining of the uterus, allowing the blastocyst to implant in the uterine wall.