Question

Which of the following characteristic is an exception to crocodiles from rest of the reptiles?

• A. Capacity to come on land
• B. Capacity to lay shelled eggs
• C. Presence of four-chambered heart
• D. Presence of powerful jaws

Answer 1

The correct option is C Presence of four-chambered heart

Crocodiles are more closely related to birds and dinosaurs than most animals classified as reptiles, the three families included in the group Archosauria ('ruling reptiles'). Despite their prehistoric look, crocodiles are among the more biologically complex reptiles. Unlike other reptiles, a crocodile has a cerebral cortex and a four-chambered heart. Crocodiles also have the functional equivalent of a diaphragm by incorporating muscles used for aquatic locomotion into respiration.