What does the nervous system of man consist of ?

The "nervous system " of Hydra consists of

(a) Name two systems which taken together perform the functions of control and coordination in human beings. (b) What does the central nervous system in humans consist of? What is the job of the central nervous system? (c) Give the various functions of brain.

Nervous system in sponges is

Autonomic nervous system cosists of

Sponges have a nervous system.

Nervous system in human beings

Nervous system in human beings