Question

50 points halfed if correct

Which phrase best describes the main function of the kidneys?

A.
filtering wastes from the blood

B.
fighting disease-causing organisms

C.
digesting carbohydrates and fats

D.
transporting nutrients to cells

Answer 1

a is the right answer

Answer 2

A. Filtering wastes from the blood. The kidneys act as a filter to clean the blood and produce urine.