John Watson offered a live, white rat to Little Albert and then made a loud noise behind his head by striking a steel bar with a hammer. The white rat served as the in his study.

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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a. by using fur or clothes to trap heat energy near the body

radon is correct hope this