Biology for IGCSE & O level - Excretion In Humans (Section 1 - No. 48)
Which of the following statements about excretion is correct?
Excretion and egestion are the same process.
Excretion is the removal of undigested food.
Excretion involves the removal of metabolic waste.
Excretion only occurs in the kidneys.
Explanation
Excretion is the process of removing metabolic waste from the body.
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