Question

how much do you know about your heart? find out by taking this qui
quiz: heart & circulatory system
q.8 what organ removes waste from blood?
a) heart
b) lungs
c) eyes
d) kidneys

Explanation:

The heart pumps blood. Lungs are for gas exchange (oxygen and carbon dioxide). Eyes are for vision. Kidneys filter waste from blood.

Answer:

D. Kidneys