The placenta
A)is where blood cells form before the fetus has bone marrow.
B)nourishes the fetus and secretes hormones that maintain the pregnancy.
C)is a membrane surrounding the embryo that gives rise to the blood vessels in the umbilical cord.
D)is the membrane that contains the fetus.

Question

Quizplus · Accepted Answer

The placenta is an organ that develops inside the uterus during pregnancy and nourishes the developing fetus. It also secretes hormones that maintain the pregnancy, including human chorionic gonadotropin (hCG) and progesterone.

The Placenta