WBCS.LIVE practice question

What is the main nitrogenous excretory product of most birds and reptiles?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Ammonia
  2. Urea
  3. Uric acid
  4. Creatinine

Correct answer and explanation

Correct answer: Uric acid

Explanation: āœ… Correct Answer: C) Uric acid šŸ“š Explanation: Birds and reptiles are 'uricotelic' organisms, meaning they excrete nitrogenous waste in the form of uric acid. Unlike ammonia or urea, uric acid is relatively non-toxic and is excreted as a semi-solid white paste with very little water. This is an evolutionary adaptation that helps these animals conserve water in their bodies.