Question

What is double and single circulation in human

Answer 1

Step-by-step explanation:

ANSWER....

SINGLE CIRCULATION

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

• it occurs in fish.

DOUBLE 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

Answer:

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Double circulatory system is a circulatory system in which blood passes through heart twice per circuit.It occurs in human.

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Single circulatory system is a circulatory system in which blood passes through the heart once a circuit.It occurs in fish.

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