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What is the meaning of excretion?

Answer and explanation

Correct answer: Removal of harmful waste from the body

Excretion is the biological process by which metabolic waste products are removed from an organism. Cellular activities produce substances such as carbon dioxide, excess water, and nitrogenous wastes; their accumulation can be harmful. Therefore, option A gives the correct meaning. Taking in food is ingestion, whereas the other choices are not definitions of excretion.

Related tags

ExcretionWaste-RemovalLife-ProcessesMetabolismLife ProcessesScienceClass 10 Mcq

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