Which of the Following Best Describes the Amnion,chorion,yolk Sac,and Allantois

Question

Which of the following best describes the amnion,chorion,yolk sac,and allantois?
A) Primary germ layers
B) Inner cell mass
C) Dizygotic twins
D) extraembryonic membranes

Accepted Answer

The amnion, chorion, yolk sac, and allantois are extraembryonic membranes that develop alongside the embryo in mammals. They provide protection, nutrition, and waste removal for the developing embryo.