Can yall help me this is honors bio and im very tired please help

A.

Explanation:

Lipids are a class of macromolecules that are nonpolar and hydrophobic in nature. Major types include fats and oils, waxes

Triglycerides are a type of fat (lipid) found in your blood.

Phospholipids, also known as phosphatides, are a class of lipids

Hope this helps

what are the choices?

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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