Question

differeciate between single circulation and double circulation in vertebrates​

Answer 1

A circulatory system in which blood travels only once through the heart in one complete cycle of the body is called single circulation. ... A circulatory system in which blood travels twice through the heart in one complete cycle of the body is called double circulation. it occurs in mammals.

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Answer 2

A circulatory system in which blood travels only once through the heart in one complete cycle of the body is called single circulation. ... A circulatory system in which blood travels twice through the heart in one complete cycle of the body is called double circulation

Blood flows only once through the heart during one cycle of passage through the body. * Blood flows twice through the heart during one cycle of passage through the body. * Occurs only in fishes.