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Why is it necessary to excrete waste products?

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Question

Why is it necessary to excrete waste products?

Answer in Brief
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Solution

  • Certain waste and toxic products are formed during the functioning of body cells. Waste products like urea are toxic.
  • When these toxic materials are not removed from the body, they get mixed with blood and can damage the cells of the body.
  • It is necessary to remove such poisonous waste materials from our bodies.
  • Some harmful substances are produced in the body as part of biological processes. It is very important to remove them from the body, otherwise poison will be produced in the body which can lead to death.
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Chapter 7: Transportation in Animals and Plants - Exercises [Page 81]

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NCERT Science [English] Class 7
Chapter 7 Transportation in Animals and Plants
Exercises | Q 12. | Page 81

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