Birds and mammals share one of the following characteristics as a common feature:
Which one of the following sets of animals share a four chambered heart?
(a) Amphibian, Reptiles, Birds
(b) Crocodiles, Birds, Mammals
(c) Crocodiles, Lizards, Turtles
(d) Lizards, Mammals, Birds
Birds and mammals share one of the following characteristics as a common feature.
(a) Pigmented skin
(b) Pneumatic bones
(d) Warm blooded body
Which one of the following characteristic is not shared by birds and mammals?
Which among the following features is a difference between birds and mammals?