The $BMR$ (Basal Metabolic Rate) of a rabbit is under the influence of:

Iodine is stored in which of the following glands in the body?

Select the incorrect option.

On an educational trip to Uttaranchal,Ketki and her friends observe that many local people have swollen necks. Please help Ketki and her friends to find out the solutions to the following questions.
$(a)$ Which probable disease are these people suffering from?
$(b)$ How is it caused?
$(c)$ What effect does this condition have on pregnancy?

Graves' disease is caused by . . . . . . .

The hormone responsible for metamorphosis in a tadpole is