Neural coordination is

Arrange the following in the correct sequence in the evolution of the nervous system:
$(a)$ Formation of a centralised nervous system.
$(b)$ Diffused nervous system in $Hydra$.
$(c)$ Formation of a ganglion.
$(d)$ Nervous system is lacking in sponges.

The eyes and ears are examples of .....

The olfactory nerve is the .... cranial nerve.

Proprioceptors are those,which give the sense of

The branch of science associated with the prevention,diagnosis,and treatment of mental disorders is called: