Question

Which hormones regulate the growth of metamorphosis in frogs?

• A. Adrenaline
• B. Insulin
• C. Thyroxine
• D. Cortisol

Answer 1

The correct option is C

Thyroxine

The correct option is (C):

Explanation of the correct option:

1. Metamorphosis can be defined as the change in physical and structural form from the larval stage to the adult stage.
2. The larval stage of frogs is known as tadpoles which consist of tails, they metamorphose to form adult frogs without tails.
3. The hormone thyroxine is responsible for the metamorphosis of tadpoles into adult frogs
4. Iodine is an important component for the production of thyroxine.

Explanation of the incorrect options:

Option (A):

1. Adrenaline is a hormone responsible for the management of stress.
2. It is not associated with metamorphosis.

Option (B):

1. Insulin is secreted by the endocrine part of the pancreas and it helps in lowering blood sugar in the human body.
2. It is not related to metamorphosis in frogs.

Option (D):

1. Cortisol is secreted by the cortex part of the adrenal gland which is responsible for the breakdown of fats and proteins.
2. It is not associated with metamorphosis.

Final answer:

Thyroxine regulate the growth of metamorphosis in frogs