The woman on the platform is correct because it is the pace of the man moving on the train not walking.
It’s 4. Definitely 4. 99% sure it’s 4.
I believe Action potential is the brief wave of positive charge that sweeps down the axon. Axon is part of the neuron that conducts impulses from the dendrites towards the cell body along the neuron. The action potential is brief since the sodium channels can only stay open for a very brief amount of time. As it travels along the neuron there is a change in polarity across the membrane of the axon .
Its a waste of time, you have to not only write it down, but study it after too . other than that notes are great.
