You discover a compound that you suspect reduces spoilage in fruit. you treat apples with your compound and inoculate them with botrytis, a common spoilage fungus. after 7 days, the dry weight of fungi is 5 mg on the treated apples and 10 mg on the untreated apples. you conclude from these results that

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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the wires in the toaster turning red and the toast crisping and turning brown