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
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