Question

Which animal has three-chambered heart?​

Answer 1

Lizard has three-chambered heart. Except crocodilians all the reptiles have three-chambered heart. Crocodiles have four-chambered heart. Pigeons have four-chambered heart. Fish have two-chambered heart. Lion have four-chambered heart.

Birds and mammals have four chambered heart i.e. 2 atria and 2 ventricles. Three-chambered consists of 2 atria and 1 ventricle and two-chambered heart consists of 1 atria and 1 ventricle.

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Answer 2

hllo xD☺

Vertebrate hearts can be categorized by the number of chambers they have: Two chambers: one atrium and one ventricle (fish) Three chambers: two atria and one ventricle (amphibian and reptile) Four chambers: two atria and two ventricles (bird and mammal)

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