ZoologyAves differ from reptiles in having

Aves differ from reptiles in having

A
scales and dry skin
B
cloaca and gizzard
C
air bladder and 4-chambered heart
D
feathers and pneumatic bones

Solution:

Aves differ from reptiles in having feathers and pneumatic bones.

Scales are present on the hindlimbs of the birds.

Cloaca is present in both reptiles and birds.

Crocodiles have 4-chambered heart.