There are only two genders?

true or false?

Yes there are only 2 genders, so it is True

There are 13 genders google says. Which makes is false but in some peoples eyes there is only two.

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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