Identify the correct gland on the basis of following character.
$(I)$ It is located on the dorsal side of forebrain.
$(II)$ It plays very important role in the regulation of $24$ hour rhythm of our body.
$(III)$ It helps in maintaining the body temperature.
$(IV)$ It's hormone, influences the metabolism as well as defense capability.
Neurohypophysis secretes the
Melanocyte stimulating hormone in frog is released by
The function of glucagon hormone is
In males, the spermatogenesis is regulated by