Describe double circulation in human beings. Why is it necessary?
NCERT Class X
Science - Science
Chapter_Life Processes
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Answered by
9
During a single cycle blood goes twice in the heart which is known as double circulation. It is necessary in human being to separate oxygenated and de - oxygenated blood because this makes their circulatory system is more efficient and helps in maintaining constant body temperature.
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Answered by
2
Double circulation is type of circulation in which the blood is first send into lungs then into the other body parts its important to metain the pressure of blood in body and to have a oxidized blood in the body
good explanation
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