You need to measure three things: 1. a quantity of water 2. the length of a leaf 3. the mass of a small stone which unit of metric measurement will you use for each one?

the answer is golgi apparatus

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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