We can produce a concentrated/ dilute urine. This is facilitated by a special mechanism. identify the mechanism. (a) Reabsorption from PCT (b) Reabsorption from collecting duct (c) Reabsorption/Secretion in DCT (d) Counter current mechanism in Henle's loop vasa recta
Filtration of the blood takes place at (a) PCT (b) DCT (c) Collecting ducts (d) Malpighian body.