Metamorphosis in frog is fastened by
Thyroxine
Insulin
Glucagon
Adrenaline
Pheromones are also called
$I.$ ectohormone $II.$ sex attractants $III.$ semichemicals
The correct option is
Adrenal virilism results due to
Which one of the following is not a second messenger in hormone action?
Different colours of frog's skin are controlled by
State the importance of neural system.