Thermohaline circulation is movement of seawater due to differences in what two properties? 1) density and temperature 2) salinity and temperature 3) temperature and depth 4) salinity and density

its d lol

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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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