What is the process of removing harmful waste substances from the body called?
Answer and explanation
Correct answer: Excretion
The governing concept is excretion, the removal of metabolic waste products from an organism. Cellular activities produce substances such as carbon dioxide, excess water and nitrogenous wastes, which can disturb the internal balance if they accumulate. The body therefore removes them through organs such as kidneys, lungs and skin. Option A is correct. Nutrition supplies materials, transport moves substances, and respiration releases energy; none of these terms specifically means waste removal.
Frequently asked questions
What is the correct answer to this question?
Excretion
Why is this the correct answer?
The governing concept is excretion, the removal of metabolic waste products from an organism. Cellular activities produce substances such as carbon dioxide, excess water and nitrogenous wastes, which can disturb the internal balance if they accumulate. The body therefore removes them through organs such as kidneys, lungs and skin. Option A is correct. Nutrition supplies materials, transport moves substances, and respiration releases energy; none of these terms specifically means waste removal.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Life Processes. Topic: Excretion.
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