Answer:
The inward flow of sodium ions increases the concentration of positively charged cations in the cell and causes depolarization, where the potential of the cell is higher than the cell's resting potential. The sodium channels close at the peak of the action potential, while potassium continues to leave the cell.
True but I don't know for sure
Are you kidding me? The answer is obviously 62.
Do some crunches
make sure you are eating protein after every work out