Which of these choices is a primary goal of science?

a. to decrease the amount of pollution

b. to create new types of products

c. to educate students

d. to explain what things are made of

D. To explain what things are made of

Explanation:

Science is a discipline which is a source of gathered knowledge of the facts which are responsible for the cause of the natural process, natural events, how things are formed, what is the composition of these things. This can also help in understanding the patterns of the nature and making the prediction of the future events.    

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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