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.

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4.6.7 - Quick Check: The Excretory System
Biology B - Winn / 4. The Human Body / 4.6. The Excretory System
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