Balenced chemical equations. (a)sodium + oxygen sodium oxide

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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meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.

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human impact on the environment can be seen in the deterioration of the !

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