What is a solution? a heterogeneous mixture in which one substance is dissolved into anothera homogeneous mixture in which one substance is dissolved into anothera mixture in which substances are dissolved unevenly throughouta compound  in which one component is dissolved into another

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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