Internal Fertilization,leathery Amniotic Egg,and Skin That Resists Drying are Characteristics

Question

Internal fertilization,leathery amniotic egg,and skin that resists drying are characteristics of
A)amphibians.
B)nonbird reptiles.
C)chondrichthyans.
D)mammals.
E)birds.

Accepted Answer

Internal fertilization, leathery amniotic egg, and skin that resists drying are characteristics of nonbird reptiles such as snakes, lizards, turtles, and crocodiles. Amphibians lay their eggs in water and have moist skin, chondrichthyans have cartilaginous skeletons and lay eggs with leathery cases, mammals give live birth and do not lay eggs, and birds have hard-shelled amniotic eggs and feathers for insulation.