Question

In Frog, nitrogeneous waste products are eliminated as

• A. Urea in tadpole and adult
• B. Urea in tadpole and ammonia in adult
• C. Urea in tadpole and uric acid in adult
• D. Urea in adult and ammonia in tadpole

Answer 1

The correct option is D Urea in adult and ammonia in tadpole

Adult Frog excretes urea because urea is less toxic than ammonia and can be concentrated in urine and excreted at a slower rate. Whereas tadpole excretes ammonia because it lives in water and has the large volume of water that is needed for the elimination of ammonia. It can eliminate ammonia into surrounding water rapidly when it is formed. Hence In Frog, nitrogenous waste products are eliminated as Urea in adult and ammonia in tadpole

So, the correct answer is 'Urea in adult and ammonia in tadpole'.