Question

Reptiles lay eggs as a means of reproducing, while mammals give birth to live young.

Which statement best demonstrates a reproductive disadvantage of mammals?
O The long development time can be risky for both the embryo and the mother.
O The embryo may be exposed to predators.
O The embryo is protected in the mother, and when it is born, it is usually well developed.
O The offspring are born full size.

Answer 1

The long development time can be risky for both the embryo and the mother.

Explanation: The long development time can be risky for both the embryo and the mother.