Excretion is the process of
ARemoval of metabolic waste from the body
BRemoval of undigested food from the gut
CBreaking of food into smaller particles
DAbsorption of nutrients into the blood
Answer & Solution
Correct answer: A. Removal of metabolic waste from the body
1. Section 8.1 defines excretion.
2. It is removal of chemical (mainly nitrogenous) wastes from the body.
3. Defaecation is removal of undigested food, not excretion.
4. So option A is correct.
_Source: Selina Concise Biology Class 10, Ch 8 The Excretory System (Mistral OCR'd PDF), section 8.1_
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