The thigmonasty is the nastic movement of a plant in response to

Differentiate between estrogen and testosterone.

The junction between two neurons is called:

What type of movement is shown by $Mimosa$ $pudica$ (touch-me-not) plant leaves when touched with a finger?

Give a reason to explain why:
$(i)$ Adrenaline helps in dealing with emergency situations?
$(ii)$ Secretions of growth hormone should be specific in the human body?
$(iii)$ Some patients of diabetes are treated by giving injections of insulin?

Illustrate with the help of a diagram,the effect of auxins in different parts of a plant.