Which of the following is not among the advantages of generating nuclear energy?
(1 point)
a. it does not release carbon dioxide into the atmosphere
b. it does not require a specialized process of involve any risk
c. it does not release chemicals the cause acid rain

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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a- all cells come from pre-existing cells