Question

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

blood
mucus
urine
sweat

Explanation:

• Blood is a complex fluid with cells and other components, not produced by this specific filtration of water, salts, sugar, and urea.
• Mucus is a viscous secretion for lubrication/protection, not formed by this filtration.
• Urine is formed in the kidneys by filtering water, salts, glucose (sugar), and urea from blood plasma (after reabsorption adjustments).
• Sweat is produced by sweat glands, mainly for thermoregulation, with a different composition and formation process than the described filtration for urine.

Answer:

C. Urine