What kind of cells have chloroplasts?

plant cells

Explanation:

chloroplasts use the energy form the sun and oxygen and CO2 and other materials to make glucose (sugar) to feed themselves. this is impossible without the chloroplasts.  Animals do not have chloroplasts because they go around eating other plants which already have the sugar in them.

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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true is the answer : )