Approx 180 liters of filtrate is formed per day by the kidneys, but ________ leaves the body as urine. Applied Physiology Approx 180 liters of filtrate is formed per day by the kidneys, but ________ leaves the body as urine. A. <.01% B. <3% C. <1% D. <2.5% Answer: C Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+