This is the question for the letter K: Kidney
How many liters of blood do the kidneys filter each day?
A. 90 liters
B. 120 liters
C. 180 liters
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The answer is C: 180 liters
The kidneys filter about 180 liters of blood each day
The kidneys remove waste products from the body, which are excreted in urine (about 0.8 – 2.0 liters each day).
The kidneys also control the production of red blood cells and release hormones to regulate blood pressure.