According to the all-or-none law:
A. all axons in an area will fight at a given signal.
B. an axon moves from its resting state with various degrees of stimulation.
C. only sufficient electrical activity will cause the axon to fire.
D. there is a gradual build up of electrical activity before an axon can fire
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Give your choice.
A. all axons in an area will fight at a given signal.
The correct answer is C. only sufficient electrical activity will cause the axon to fire.
According to the all-or-none law, a neuron (or axon) will either fire an electrical impulse (action potential) when it reaches a certain threshold level of stimulation or it will not fire at all. The response of a neuron is not dependent on the strength or intensity of the stimulus beyond the threshold level. So, if the stimulation is below the threshold, the neuron will not fire. However, if the stimulation reaches or exceeds the threshold, the neuron will fire with a full strength response.
To determine the answer to this question, you need to understand the concept of the all-or-none law, which states that a neuron will either fire or not fire based on the strength of the stimulation. Knowing this rule, you can eliminate options A and D as they are not consistent with the all-or-none law. Option B is incorrect because the all-or-none law does not involve various degrees of stimulation, but rather a binary firing or non-firing response. Therefore, the correct answer is C, which accurately describes the all-or-none law.