Which of the following processes contribute to the production of a small volume of highly concentrated urine during dehydration?
Explanation
During dehydration, the kidneys produce a small amount of concentrated urine by combining several mechanisms: increased reabsorption in the proximal tubule, enhanced concentration in the loop of Henle, and greater reabsorption in the distal tubule and collecting ducts. Therefore, all these processes work together to conserve water.