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NEET2004BotanyEcosystemActual

A terrestrial animal must be able to:

Options

  1. Aexcrete large amounts of water in urine
  2. Bconserve water
  3. Cactively pump salts out through the skin
  4. Dexcrete large amounts of salts in urine.

Correct answer

B. conserve water

Step-by-step 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.

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