For Class 7th
explain the process of excretion in humans . what is dialysis and how is it performed ? what the importance of dialysis in the lives of those people whose kidney have stopped working.
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This process uses an artificial kidney (hemodialyzer) to remove waste and extra fluid from the blood. The blood is removed from the body and filtered through the artificial kidney. The filtered blood is then returned to the body with the help of a dialysis machine.
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