In a mammal, the placenta performs functions similar to those to the

In a mammal, the placenta performs functions similar to those to the
  • A.
    lungs kidneys and digestive system
  • B.
    lungs, heart and nervous system
  • C.
    liver, intestines and reproductive system
  • D.
    intestine, heart and digestive system
Correct Answer: Option A
Explanation
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