Characteristic features such as four-chambered heart, feather and pneumatic bone are applicable to which class of vertebrate?

Question

Characteristic features such as four-chambered heart, feather and pneumatic bone are applicable to which class of vertebrate? (A) Cyclostomata (B) Aves (C) Reptilia (D) Mammals

Tardigrade Admin · Accepted Answer

Pneumatic bones are the characteristic features of class Aves (birds). These bones help the birds during flight. Aves also contain four chambered heart and feathers.

Q. Characteristic features such as four-chambered heart, feather and pneumatic bone are applicable to which class of vertebrate?

Cyclostomata

Aves

Reptilia

Mammals

Pneumatic bones are the characteristic features of class Aves (birds). These bones help the birds during flight. Aves also contain four chambered heart and feathers.