McGraw-Hill Online Learning Center Test

McGraw-Hill Online Learning Center Test


1. Review the image and answer the following questions.

From what embryonic membrane does the placenta develop?

A. chorion
B. amnion
C. allantois
D. yolk sac


2. What is true about the role of the placenta?

A. It delivers nutrients and removes wastes from the fetus.
B. The blood of the mother and fetus mix here.
C. Toxins and drugs never cross the placental barrier.
D. The placenta is maternal in origin.
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