MCQ
A terrestrial animals must be able to
- AActively pump salts out through the skin
- BExcrete large amounts of salts in urine
- CExcrete large amounts of water in urine
- ✓Conserve water
✓
Answer
Correct option: D.
Conserve water
d
(d) Uric acid is least soluble nitrogenous waste and one gm of uric acid needs only $10 \,ml$ of water to be expelled out of body.
(d) Uric acid is least soluble nitrogenous waste and one gm of uric acid needs only $10 \,ml$ of water to be expelled out of body.
So excretion of uric acid is of greater advantage to land animals which have limited access to water. So uricotelism is an adaptation to terrestrial mode of life.
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