In the following question a pair of words or phrases is followed by five pairs of words or phrases. choose the pair that best expresses a relationship similar to that in the original pair. diffusion: passive transport a. exocytosis: active transport b. facilitated diffusion: active transport c. osmosis: active transport d. endocytosis: passive transport e. sodium/potassium pump: passive transport

I think the answer was B. I answered this question a while ago. I'm sorry, correct me if its wrong

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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eukarya because is is like alche and b is bacteria and d is animals

explanation: