Explain why a forest fire is considered to be a density-independent limiting factor.

A forest fire is considered to be a density independent limiting factor because there will be no effect in the outcome whether there are organisms or however many are there involved in which the forest fire can’t be changed regardless of how many are the population is—this pertains to the density independent.

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.  

read more on -

c should be the answer