Question

Why do tadpoles growing in iodine deficient waters fail to grow into frogs?
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Answer 1

Answer:

because

for the transformation of a tadpole into an adult frog is done by a hormone which requires idoine to activate ..

hope it helps u

Answer 2

Explanation:

Why do tadpoles growing in iodine deficient waters fail to grow into frogs?

The growth and development of the animals like tadpole is controlled by the hormone called thyroxine produced by the thyroid gland. ... Thus, if the water in which tadpole is living is deficient in iodine, it retards its growth and metamorphosis. Thus, it fails to develop into adult frog.