EVERYDAY SCIENCE

Detailed explanation-1: -A heart with three chambers is designed for amphibians, who can absorb oxygen through their skin. With the exception of crocodiles, which have a four-chambered heart, all reptiles have a three-chambered heart with two atria and one ventricle. The right atrium receives deoxygenated blood.

Detailed explanation-2: -Amphibians have 3 heart chambers: 2 atria and 1 ventricle.

Detailed explanation-3: -Amphibian Hearts Most amphibians, including frogs and toads, have three-chambered hearts, with two atria and one ventricle (Figure 1).

Detailed explanation-4: -Amphibians and reptiles (except for crocodiles) contain a three-chambered heart with only one ventricle. This is because these animals have a slower metabolism rate and hence, they require a lower amount of oxygen per liter of blood to be delivered to the body.

Detailed explanation-5: -Amphibians have a three-chambered heart. Fishes have a two-chambered heart. Q. The heart of mammals and birds is four-chambered, while fishes have two-chambered hearts and amphibians and reptiles have three-chambered hearts.