According to the all-or-nothing principle, Select one: a. the amount of time a neuron must "rest" in between firing episodes is
stable. b. if all the neurons in a network are not integrated, the "message" carried by the neurons will be lost. c. as a person ages, his or her neurological system slows down and the intensity of neural impulses decreases significantly. d. once the electrical impulse reaches a certain level of intensity, it fires and moves all the way down the axon without losing any intensity.
<em>The correct option is d) once the electrical impulse reaches a certain level of intensity (its threshold), it fires and moves all the way down the axon without losing any intensity.</em>
Explanation:
In the field of biology, the all-or-nothing law can be described as a principle which focuses on the strength with which a nerve or muscle fibre responds to a particular stimulus, this strength being independent of the strength of the stimulus. The functioning of the impulse is just like the trigger of a gun. The more the force of a stimulus, the more will be the intensity of the nerve impulse.
It doesnot have a nucleus to increase the surface area
Explanation:
Red blood cells carry oxygen from our lungs to the rest of our bodies .Then they make the return trip, taking carbon dioxide back to our lungs to be exhaled.
Maintaining internal conditions within an organism, especially when <span>outside conditions change is called homeostasis. In Latin, the word homo/homeo means <em>the same, </em>and stasis means <em>state/condition. </em> </span>
