Imagine that you could calculate the average (mean) of metabolic rates of all the animal
species in this graph. Now imagine that the
shrew were removed from the graph and that
you recalculated the average of the remaining
species. Without the shrew, the new average
metabolic rate would be Select... »).
• higher than the previous average
. lower than the previous average
• about the same as the previous average

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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the correct answer is 2 and 4

1) a

2)c

3)a

4)c

5)b

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