Question

Identify the animal with four-chambered heart.

• A. Snake
• B. Frog
• C. Lizard
• D. Crocodile

Answer 1

The correct option is D Crocodile

Crocodiles comes under class reptilia and they have have four chambered heart. It has two auricles and two ventricles with valves to regulate the blood flow. It has rough scales on the body. Most reptiles have three chambered heart but crocodiles are exception to class reptilia. The four chambered heart keeps oxygenated and non-oxygenated blood separate and leads to greater production of energy.

So, the correct answer is option D.