Question

The elimination of toxic nitrogenous waste and excess water in man is by:

• A. Excretion
• B. Circulation
• C. Reproduction
• D. Pollution

Hint:

Excretion is the process through which the body removes waste products and excess substances such as water, salt, and nitrogenous compounds.

Answer 1

The Correct Option is A

The elimination of toxic nitrogenous waste (such as urea) and excess water from the body is carried out by excretion. This process occurs through the kidneys, which filter the blood and remove waste products and excess water in the form of urine.
Thus, the correct answer is (A) Excretion.