Choose an organism. Use credible websites to research the classification of that organism and the characteristics it shares with other organisms in each category. Then note the organism you selected and fill in the table with the information you gathered. Name of Organism:

Category Name Shared Characteristics
Kingdom
Phylum
Class
Order
Family
Genus
Species

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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i think the answer would be d