Q: Given a scientific passage and an answer, generate a question for the given answer.
Passage: The kidneys are a pair of bean-shaped organs just above the waist. A cross-section of a kidney is shown in Figure below . The function of the kidney is to filter blood and form urine. Urine is the liquid waste product of the body that is excreted by the urinary system. Nephrons are the structural and functional units of the kidneys. A single kidney may have more than a million nephrons!. Answer: kidneys
A:
What is the pair of bean-shaped organs situated just above the waist?