Name the plant hormone responsible for the promotion of cell division.

$(a)$ Draw the structure of a neuron and label the following on it:
Nucleus,Dendrite,Cell body,and Axon.
$(b)$ Name the part of the neuron:
$(i)$ Where information is acquired.
$(ii)$ Through which information travels as an electrical impulse.

State whether the following statement is true or false: Blood pressure,salivation,and vomiting are controlled by the cerebrum.

In a synapse,chemical signal is transmitted from :

What is the correct direction of flow of electrical impulses?

$(a)$ How are the movement of leaves of touch-me-not and the growth of a stem towards light different?
$(b)$ What is chemotropism? Give one example.
$(c)$ What is tropism?