Multiple choice

Filtration of wastes from the blood in human body is carried out by

  1. liver

  2. lungs

  3. kidney

  4. heart

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Kidneys filter blood through nephrons, removing waste products like urea, excess salts, and water to form urine. Liver metabolizes toxins, lungs exchange gases, and heart pumps blood - none filter wastes from blood.