Question

How do the kidneys clean the blood? (1 point)
• Kidneys clean the blood by breaking down nutrients.
• Kidneys clean the blood by filtering it to remove wastes.
• Kidneys clean the blood by absorbing nutrients.
• Kidneys clean the blood by destroying microbes and preventing infection.

Answer 1

http://kidshealth.org/kid/htbw/kidneys.html

Answer 2

4.6.7 - Quick Check: The Excretory System
Biology B - Winn / 4. The Human Body / 4.6. The Excretory System
B
A
C
D
C
Got 100%