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Q: Which reptile has four cardiac chambers ?
  • A. Turtle
  • B. King cobra
  • C. Chameleon
  • D. Crocodile
Correct Answer: Option D - Crocodile has four chambered heart two atria and two ventricles, an unusual trait among extant reptiles, and both a left and right aorta which are connected by a hole called the Foramen of panizza. Like birds and mammals, crocodiles have heart valves that direct blood flow in a single direction through the heart chamber.
D. Crocodile has four chambered heart two atria and two ventricles, an unusual trait among extant reptiles, and both a left and right aorta which are connected by a hole called the Foramen of panizza. Like birds and mammals, crocodiles have heart valves that direct blood flow in a single direction through the heart chamber.

Explanations:

Crocodile has four chambered heart two atria and two ventricles, an unusual trait among extant reptiles, and both a left and right aorta which are connected by a hole called the Foramen of panizza. Like birds and mammals, crocodiles have heart valves that direct blood flow in a single direction through the heart chamber.