The embryos of marsupials are
A)born fully developed.
B)born highly underdeveloped.
C)hatched from an internal egg.
D)hatched from an externally laid egg.
E)nourished by the placenta.

Question

Quizplus · Accepted Answer

Marsupial embryos are born highly underdeveloped and climb to their mother's pouch where they continue to develop while attached to a nipple. They lack a placenta and receive minimal nourishment from the mother's yolk sac.

The Embryos of Marsupials Are