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Which of the following grows in the women's uterus during pregnancy and allows nutrients,gases and waste to be exchanged between the mother and the fetus?
A. fertilization
B. placenta
C. Ovaries
D. Uterus​


Sagot :

Answer:

B.placenta

Explanation:

The placenta also carries oxygen and nutrients from mother to fetus and waste materials from fetus to mother. Some of the cells from the placenta develop into an outer layer of membranes (chorion) around the developing blastocyst.