Question

what
the mammals have to do to produce the offsprings​

Answer 1

Answer:

In most mammals, the fertilized egg implants itself in the mother's womb. There it develops into an embryo, which is nourished by the placenta. Marsupials have no placenta and give birth to tiny, helpless young. MONOTREMES, such as the platypus, lay eggs.

Explanation:

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