describe double circulation in human beings ,why is it necessary?
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Blood goes heart twice during each cycle is known as double circulation. It is necessary as it helps mammals and birds to maintain their body temperature that have high energy need
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Double circulation involves pulmonary and systemic circulation.
Pulmonary circulation describes the process of transport of the deoxygenated blood to the lungs for oxygenation and purification.
Systemic circulation occurs when pure oxygenated blood after coming to the heart is transported to rest of the body parts and organs through arteries and other vessels.
Pulmonary circulation describes the process of transport of the deoxygenated blood to the lungs for oxygenation and purification.
Systemic circulation occurs when pure oxygenated blood after coming to the heart is transported to rest of the body parts and organs through arteries and other vessels.
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