Electrical activity of neurons

Prompt:

After reviewing the animations regarding Action Potential and Resting Potential of neurons, please address the following items:

How does action potential work in electrical activity of neurons?
What types of bodily functions electrical activity which takes place between neurons?
How do action potential and resting potential differ or compare?

https://youtu.be/iBDXOt_uHTQ
https://youtu.be/LT3VKAr4roo