CherelleSassaman CherelleSassaman

01-05-2014
Biology

Answered

Which statement is true of a placenta?
a. The placenta passes oxygen, nutrients, and other useful substances from the fetus to the mother.
b. The placenta passes oxygen, nutrients, and other useful substances from the mother to the fetus.
c. The placenta mixes blood from the mother and fetus together.
d. The placenta protects the mother from being attacked by the fetal immune system.

Answer :

01-05-2014

The answer is definitely B

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