Plants use carbohydrates to build things such as cellulose. how do plants acquire these building blocks to build mass? a) they absorb carbohydrates through the soil. b) they absorb dissolved carbohydrates via water. c) they make carbohydrates through the process of photosynthesis. d) they make carbohydrates through the process of cellular respiration.

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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