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Transportation in Animals and Plants
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11/07/2021 12:52 pm
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Why is it necessary to excrete waste products?
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11/07/2021 12:53 pm
Certain waste and toxic products are formed during functioning of body cells. The waste products like urea etc. are toxic. When these toxic materials are not removed from the body, they get mixed with blood and can damage the cells of body. It is necessary to remove such poisonous waste materials from our body.