In biology, FITNESS is described as the ability to survive and create offspring.
Question 4 options:
True
False

True

Explanation:

Fitness, contrary to popular belief, is not a measure of how "strong" an individual is, but instead of their ability to pass on their genes to the next generation, or in other terms, their ability to survive and create offspring.

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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