In mammalian development, the function of the yolk is to

In mammalian development, the function of the yolk is to
  • A.
    supply nutrients to the embryo
  • B.
    act as the shock-absorber to the foetus
  • C.
    supply air to the embryo
  • D.
    facilitates the process of excretion in the foetus
Correct Answer: Option A
Explanation
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