Question

From the given organisms, pick the ones which possess a three-chambered heart.

• A. Rana tigrina
• B. Labeo rohita
• C. Both A and B
• D. Neither A nor B

Answer 1

Answer: (A), (D)

The correct options are
A Rana tigrina
D Neither A nor B

The animals that belong to the phylum Pisces have a two-chambered heart. Amphibians and most reptiles have 3-chambered hearts, while crocodiles, Aves and Mammalia have 4-chambered hearts. Rana tigrina is the scientific name of the frog, which is an amphibian. Labeo rohita is a fish, which has two chambers in its heart. Pigeon is a bird which has a 4-chambered heart, while the king cobra is a reptile which has a 3-chambered heart.