Question

Which of the following is excretory material in birds?

• A. Ammonia
• B. Urea
• C. Uric acid
• D. Creatinine

Hint:

The excretion of uric acid helps birds conserve water, a critical adaptation for survival in environments with limited water resources.

Answer 1

The Correct Option is C

Birds' primary nitrogenous waste product is uric acid. Unlike mammals, which excrete urea, birds eliminate uric acid in a semi-solid state, thereby conserving water essential for their survival in arid environments. Therefore, uric acid is the correct answer.