In mammals,the organ of exchange between the mother and fetus is the
A)amnion.
B)placenta.
C)chorion.
D)yolk sac.

Question

Quizplus · Accepted Answer

The placenta is the organ of exchange between the mother and fetus in mammals. It allows for the exchange of nutrients, oxygen, and waste products between the maternal and fetal bloodstreams. The amnion is a membrane that surrounds the developing embryo and helps protect it during development. The chorion is another membrane that helps form the placenta. The yolk sac, present in some mammals, provides nutrients to the developing embryo during early development. However, it is not the main organ of exchange between the mother and fetus.

In Mammals,the Organ of Exchange Between the Mother and Fetus