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.
Ecological Niche. The functional role of an organism or a species in the ecosystem, including its relationships with other species. ecology. The study of the distribution, abundance, and interrelationships of organisms and their interactions with the environment. Ecosystem
Meiosis differs from mitosis in the number of chromosomes in each ending cell. In addition, one of the purposes of meiosis is to reduce the chromosome number in each cell by half and meiosis contains two rounds of division which is meiosis I and meiosis II and ends with four gametes that are not the same genetically.
