A neuron's initial, internal response to an incoming signal can vary in size. The ultimate, external response of the cell, however, does not vary in size. If the signal is sent, it is always of the same magnitude. This effect is called the

all or none law

Explanation:

All or none law -

This law was very first given in the year 1871 by American physiologist Henry P. Bowditch.

It refers to the principle , according to which the capacity of the nerve to respond to a particular stimuli does not depend on the strength of the stimuli , is referred to as all or none law .

In this case , if the stimuli exceed some specific level of threshold , then it will respond , otherwise , there won't be any response .

Hence , from the given information of the question ,

The correct term is all or none law .

answer; decoy;