Q. The process of excretion is the
A) Removal of useful substances from the body
B) Removal of metabolic waste from the body
C) Removal of the substances which have never been a part of the body
D) Formation of useful substances in the body
Explanation
Excretion is the removal of metabolic wastes from the body. $CO_{2}$ and water are the metabolic waste for carbohydrates and fat metabolism. Their removal is, therefore called excretion Osmoregulation is the control over the concentration of the water and salt in the body
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.