Unlike normal cells , which of the following is true of cancer cells ?

A

Explanation:

I believe the answer is A

Cancer cells are cells gone wrong — in other words, they no longer respond to many of the signals that control cellular growth and death. As they grow and divide, the less likely they will become normal cells again

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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the cell cycle is the final answer! : )