Q42 / 200 · NEET 2004 · Botany

A terrestrial animal must be able to:

  • A
    excrete large amounts of water in urine
  • Correct answer
    B
    conserve water
  • C
    actively pump salts out through the skin
  • D
    excrete large amounts of salts in urine.

Solution

Terrestrial animals (mammals and semi-terrestrial adult amphibians) cannot use water freely for excretion because of less availability in the environment, so ammonia is converted into a less toxic and easily soluble product, urea. Terrestrial animals must osmoregulate to maintain contant internal osmolarity.

Hence, the correct answer is option: 'B'.

Relevant Questions