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CherelleSassaman CherelleSassaman
  • 01-05-2014
  • Biology
Answered

Which statement is true of a placenta?

AThe placenta passes oxygen, nutrients, and other useful substances from the fetus to the mother.
BThe placenta passes oxygen, nutrients, and other useful substances from the mother to the fetus.
CThe placenta mixes blood from the mother and fetus together.
DThe placenta protects the mother from being attacked by the fetal immune system.

Verified Answer :

annab annab
  • 01-05-2014

The answer is definitely B

Answer Link

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