Question

multiple choice question
______ is produced by filtration of water, salts, sugar, and urea.

○ urine
○ blood
○ sweat
○ mucus

Explanation:

Urine is formed in the kidneys through filtration of blood (containing water, salts, sugar, urea) to remove waste. Blood is the source, not the product of this filtration. Sweat has different components and formation, and mucus is for lubrication/protection, not from this filtration. So Urine is correct.

Answer:

A. Urine