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  • There has been an increase in the number of chambers in the heart during the evolution of vertebrates. Give the names of the class of vertebrates having two,three or four-chambered heart.

There has been an increase in the number of chambers in the heart during the evolution of vertebrates. Give the names of the class of vertebrates having two, three or four-chambered heart.

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Two-chambered hearts: Osteichthyes and Chondrichthyes
Three-chambered heart: Amphibia and Reptilia
Four-chambered heart: Aves and Mammalia

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