U must be very cleaver and very rich:huh:if it has a nervous system, it will feel pain. if it has nerves running throughout its body, it will feel pain.
that is the whole reason for the nervous system. to send and recieve electrical impulses. every time a nerve is activated it sends an impulse to the brain. that is how you feel and recieve pain. every time a negative impulse goes to the brain it is percieved as pain, and the organism knows to move to stop it. why do you think an oscar will move when it gets nipped by a convict?