A) hypothalamus
B) pituitary
C) thymus
D) thyroid
Correct Answer: D
Solution :
Thyroid gland secretes three hormones : (i) Thyroxine, (ii) Tri-iodothyronine (iii) Calcitonin. Thyroid gland is stimulated to secrete its hormone by a pituitary gland hormone TSH (Thyroid Stimulating Hormone). Thyroxine increases BMR (Basal Metabolic Rate) and stimulates growth, tissue differentiation and metamorphosis of tadpoles into adult frog.You need to login to perform this action.
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