What is the main function of the kidneys?

Answer and explanation

Correct answer: C. filter waste such as urea from the blood

The kidneys filter waste such as urea from the blood.
Answer: filter waste such as urea from the blood.
Why not the others: absorbs digested food into the blood: that is the job of the small intestine. absorbs water from undigested food: that is the job of the large intestine. coordinates the activities of the body: that is the job of the brain.

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What is the main function of the… | Junior Cycle (Ireland)