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NEST2012BiologyExcretory Products and their Elimination

Desert animals need to conserve water. Kidneys regulate the concentration of salt and water in blood through the formation and excretion of urine. A kidney is composed of approximately one million units called nephrons. The kidneys of desert animals have modified nephrons which help them survive long periods without water. Which one of these options would be the expected modification?

Options

  1. AA very short collecting duct.
  2. BA very long loop of Henle.
  3. CA very short distal tubule.
  4. DA very large Bowman's capsule.

Correct answer

B. A very long loop of Henle.

Step-by-step solution

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