Question

A tadpole becomes the frog in a very short interval of time under the influence of ............ hormone.

• A. Corticosterone
• B. Glucagon
• C. Somatostatin
• D. Thyroxine

Answer 1

The correct option is D Thyroxine

The thyroid gland is responsible for the secretion of thyroid hormones. The thyroid hormone which is called as thyroxine is an important growth hormone. The hormone is responsible for metamorphosis and thus helps in the transformation of the tadpole larvae to frog. The hormone controls various activities like the formation of limbs and other organs, reduction of the tail and other metamorphic changes.

Thus, the correct answer is option D.