Which one of the following is the key function of the kidneys______?

A.  Removal of excess carbon dioxide from


B.  Pumping blood to the heart

C.  Removal of urea and other nitrogenous

wastes from blood

D.  Removal of excess water from blood.

Check Also

Vitamin E is stored in ?

A   Arteries B   Skull C   Adipose Tissues D   None of these