Question

In the development of dogs, monkeys and dolphins, nourishment and oxygen are provided by the mother to the fetus through the

A:) Excretory system

B:) Cloaca

C:) Placenta

D:) Both (B) and (C)

Answer 1

Hi, It’s C the placenta it gives oxygen to most mammals

Answer 2

i believe the answer is C, Placenta