Viviparity is considered to be more evolved because:
a. the young ones are left on their own
b. the young ones are protected by a thick shell
c. the young ones are protected inside the mother's body and are looked after they are born leading to more chances of survival
d. the embryo takes a long time to develop

4 views

1 Answers

c. the young ones are protected inside the mother's body and are looked after they are born leading to more chances of survival

4 views