13. The following structures are part of the nephron. In which of these structures is water re-absorbed?
I. Proximal Tubule
II. Distal Tubule
III. Descending limb of the loop of henle
IV. Ascending limb of the loop of henle
V. Collecting duct
I. Proximal Tubule
II. Distal Tubule
III. Descending limb of the loop of henle
IV. Ascending limb of the loop of henle
V. Collecting duct