And plz don't delete this question bc there's nothing wrong with it, if there is tell me What level of organization is shown in this image? (picture of red cardinal on a branch)
A: community
B: single organism
C: population
D: ecosystem

Organisms and Ecosystems unit test please help

where the pic?    answer is single organism

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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