Which of the following is the most prominent difference between brand-name medications and generic medications? a. brand-name medications are easier to purchase because generic medications usually need to be specially ordered. b. brand-name medications have a guarantee of quality and effectiveness from the manufacturer and generic medications don't. c. generic medications contain the same ingredients as brand-name medications, but the ingredients in brand-name medication are of a higher quality. d. brand-name medications contain a trademark and generic medications are referred to by the name given to them based on their chemical makeup.

A. Brand-name medications are easier to purchase because generic medications usually need to be specially ordered.

Explanation:

Generic medications are not an over the counter supply because some people might not use them as they should be used. You have to set up an appointment with a doctor to get these medications ordered for you.

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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sorry, but you do not have posted the diagram.