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.
I believe it is C
correct
Optimum physical health usually occurs:
A. between the ages of 15 and 21.
B. between the ages of 18 and 25.
C. between the ages of 25 and 40.
D. between the ages of 40 and 55.
The answer is B
I agree.
To confirm your answer, let's first understand the all-or-none law. The all-or-none law states that when a neuron reaches its threshold of excitation, it will fire an action potential at full strength. This means that once the electrical activity within a neuron reaches a certain level, it will initiate an action potential and fire with its maximum intensity.
Now let's evaluate the options:
A. all axons in an area will fight at a given signal.
This option doesn't accurately describe the all-or-none law.
B. an axon moves from its resting state with various degrees of stimulation.
This option doesn't accurately describe the all-or-none law either.
C. only sufficient electrical activity will cause the axon to fire.
This option accurately describes the all-or-none law. According to this law, the axon will only fire if the level of electrical activity reaches the necessary threshold.
D. there is a gradual build up of electrical activity before an axon can fire.
This option doesn't accurately describe the all-or-none law. The firing of an axon is not a gradual process but rather a sudden event.
Therefore, the correct answer is indeed C. Only sufficient electrical activity will cause the axon to fire, in accordance with the all-or-none law.