PLEASE ANSWER FIRST ANSWER THAT IS ACCURATE GETS BRAINLIEST THANKS AND 5 STARS PLEASE ANSWER THE QUESTION SERIOUSLY

Survival of the fittest

Explanation:

Natural selection basically means survival of the fittest- the best, most desirable traits are passed on to next generations. Since the foxes have become faster and faster this would mean that the slower rabbits would end up being eaten. Now that the slower rabbits are out of the gene pool no slow genes would be passed on. Only the faster rabbits are left, therefore fast rabbits are mating with fast rabbits causing the fast gene to be passed on.

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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