- A Liver
- B Urinary bladder
- C Kidney
- D Pancreas
Correct answer: C. Kidney
Explanation: Humans have a pair of bean-shaped kidneys located on either side of the vertebral column, behind the peritoneum, that filter blood and form urine.
Concept context
Nitrogenous waste, kidney structure, urine formation in the nephron, and hormonal regulation of excretion.
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