Question

Given the Assertion and Reason below, Choose one of the following responses Assertion:Bird's four chambered heart is superior to the four charbered heart of crocodiles .Reason:Crocodilian heart has both systemic arches joining resulting in mixing of blood in dorsal aorta.Avian heart has lost systemic arch.

Answer 1

(A) and (R) are correct and (R) is correct explanation of (A).

Although Crocodile is mammal it has ventricles which is partially seperated by ventricular walls. So there is mixing of blood.