Multiple choice

Ammonia is the chief nitrogenous waste material eliminated by:

  1. amphibians

  2. reptiles

  3. tadpoles

  4. birds
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Aquatic larvae like tadpoles excrete ammonia because they live in water and can easily dilute this toxic waste product. Ammonia requires large amounts of water for elimination, making it suitable only for aquatic animals. Reptiles, birds, and adult amphibians excrete uric acid or urea, which require less water.

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