Which is true ? a. all organisms obtain water through food b. some substances must be dissolved in water before they can be used c. water s important to some organisms d. plant cells are unaffected when water is scarce

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.  

read more on -

answer; ///(statins)/aka as hmg coa