Question

How do kidney conserve water, when water content of body is low

Answer 1

For conservation of water, kidney produce very concentrated urine insted of dilute urine.

Answer 2

Answer:

The kidney conserves water by first diluting urine as it moves through the loop of Henle and then concentrating urine in the distal tubules and collecting ducts (the latter under the influence of antidiuretic hormone or ADH).