Failure of thyroid secretion from infancy leading to dwarfism and mental retardation is included under:

The thyroid gland is composed of $A$ lobes which are located on either side of the $B$. The lobes are interconnected with a thin flap of connective tissue called $C$. Select the correct combination for $A, B$ and $C$.

Cretinism can be prevented or cured by the administration of

Match the given endocrine gland with its hormones,functions,and deficiency symptoms accurately.

Metamorphosis in frog can be promoted by

Which of the following hormones contains iodine?