Home Biology Body Fluids and Circulation General A four-chambered heart is found in
Biology Body Fluids and Circulation General Single Correct MCQ
Published on: August 13, 2026

A four-chambered heart is found in

A
mammals only
B
humans only
C
all vertebrates
D
some reptiles, all birds and mammals

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A tour-chambered heart is a characteristic teature of all birds and mammals. Two auricles and two ventricles. Reptiles generally have a three-chambered heart. Crocodile is an exception as it has a fourchambered heart. Amphibians have a three-chambered heart. Fishes have a two-chambered heart.

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