First slide

Classification of Animals

Question

Crocodiles resemble mammals by the presence of

Moderate

A

four-chambered heart
B

epidermal scutes
C

ear pinna
D

dicondylic skull

Solution

Crocodiles resemble mammals by the presence of a four-chambered heart. Scutes are absent in mammals. Pinna is present only in mammals. Skull of crocodiles (reptiles) is monocondylic while that of mammals is dicondylic.

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