Granulocytes are which type of cell?
lymphocyte
erythrocyte
megakaryocyte
leukocyte

The correct answer will be option- leukocyte.

Explanation:

The granulocytes are the cells which contain secretory granules in its cytoplasm. The granulocytes are a part of the white blood cells or  "leukocytes" which provide immunity to the organism.

The granulocytes are of three types called mainly the neutrophil, basophil, or eosinophil which provide immunity by ingesting the foreign material and digest the invading microbes by the action of enzymes produced by the granules in the cytoplasm.

Thus, option- leukocyte is the correct answer.

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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