(66.) Which of the following statements is correct?
(1) Water reabsorption in descending limb of loop and collecting duct occurs under similar conditions \( \% \)
(2) Sodium reabsorption in ascending limb of loop and collecting duct occurs under similar conditions
(3) Water reabsorption in descending limb of loop and collecting duct occurs under different conditions
(4) Water reabsorption in descending limb and sodium reabsorption in ascending limb of loop occurs under similar conditions
