Nervous system is the organ
system that is mostly responsible for generating behavior in multicellular
animals. The nervous system coordinates multicellular animal’s behavior and
transmits signals within the body. Specific excitatory
and inhibitory substances are produced by the nerve cells for them to interact
with each other and certain chemicals, sound and light is detected by the sense organs
such as ear and nose which control the behavior and movement of multi cellular
animals in their environment.
