The rate of metamorphosis is increased by ... | vedclass

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(A) Metamorphosis in amphibians,such as the transformation of a tadpole into an adult frog,is regulated by thyroid hormones. Thyroid hormones,specific

Vedclass · Accepted Answer

$I_2$

Vedclass · Answer

(A) Metamorphosis in amphibians,such as the transformation of a tadpole into an adult frog,is regulated by thyroid hormones. Thyroid hormones,specifically thyroxine $(T_4)$ and triiodothyronine $(T_3)$,contain iodine $(I_2)$ as an essential component. An increase in the concentration of iodine in the water promotes the synthesis of thyroid hormones,which in turn accelerates the rate of metamorphosis.

The rate of metamorphosis is increased by .....

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