With the help of a diagram, explain the circulation of blood.

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Solution

Heart - Lungs Blood Circulation - The deoxygenated blood from the right atrium goes to the lungs and becomes rich in oxygen. Then this oxygen rich blood comes back to the left atrium of heart.

Heart - Body Blood Circulation - The deoxygenated blood from all the body parts comes to the right atrium. The oxygen rich blood from the left ventricle goes to all the body parts.

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