Question

What is excretion? Why is it necessary for any living organism?

Hint:

Excretion removes metabolic wastes and maintains body balance.

Answer 1

Definition: Excretion is the process of removal of metabolic waste products and toxic substances from the body. Necessity:

• Removes harmful metabolic wastes like urea, carbon dioxide, and excess salts.
• Prevents accumulation of toxic substances in the body.
• Maintains internal balance (homeostasis).
• Helps proper functioning of cells and organs.