What is included in the forebrain?

The shape of guard cells changes due to change in the

Define neuron. Name the parts of the neuron where:
$(i)$ information is acquired?
$(ii)$ impulse must be converted into a chemical signal for onward transmission?

What does the central nervous system in humans consist of?

In figures $(a)$,$(b)$ and $(c)$,which appears more accurate and why?

The substance that triggers the fall of mature leaves and fruits from plants is due to