A terrestrial animal must be able to

Options

(a) Actively pump salts out through the skin
(b) Excrete large amounts of salts in urine
(c) Excrete large amounts of water in urine
(d) Conserve water

Correct Answer:

Conserve water

Explanation:

Uric acid is least soluble nitrogenous waste and one gm of uric acid needs only 10 ml of water to be expelled out of bogy. So excretion of uric acid is of greater advan tage to land animals which have limited access to water. So uricotelism is an adaptation to terrestrial mode of life.