The placenta allows
A)oxygen and nutrients to diffuse from maternal blood to the embryo.
B)carbon dioxide and other wastes to diffuse from the maternal blood to the embryonic blood.
C)maternal blood to mix with fetal blood.
D)the fetus to enlarge without rupturing the mother's abdomen.

Question

Quizplus · Accepted Answer

The placenta facilitates the exchange of oxygen and nutrients from the maternal blood to the embryo, while also allowing waste products like carbon dioxide to diffuse from the embryonic blood to the maternal blood. However, maternal and fetal blood do not mix directly.

The Placenta Allows