Question

development of this glands in animals like frog is affected by iodine
a) pancreas
b) thyroxin
c) thyroid
d) liver

Answer 1

thyroid is the answer
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Answer 2

): Pars intermedia is the boundary between the anterior and posterior lobes of the pituitary. It contains three types of cells – basophils, chromophobes and colloid- filled cysts. This area produces melanocyte stimulating hormone or MSH. It stimulates the synthesis of black pigment melanin in the skin and also causes dispersion of melanin granules in the pigment cells, thereby darkening the colour in certain animals (fishes; amphibians). In man it has no such role.