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Question

Which among the following reptiles has a four chambered heart?

A
King Cobra
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B
Turtle
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C
Sphenodon
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D
Crocodile
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Solution

The correct option is D Crocodile
Most of the members of class Reptilia (like king cobra, turtle, Sphenodon) have three chambered hearts with an incomplete septum in the ventricle. In crocodiles, the septum is complete resulting in the formation of a four chambered heart. Hence, it is an exception in reptiles with a four chambered heart.

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