Which is true about Adult Stem Cells? * They no longer do mitosis, their cell type is set and can not change
They can become any cell type in the body
They are limited to the type of cell they can become.
They are found in embryos

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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