Write me a brief description of a Nerve Signal. (Only one sentence)

Description of a nerve signal

The nerve signal, or action potential, is a coordinated movement of sodium and potassium ions across the nerve cell membrane. Here's how it works: As we discussed, the inside of the cell is slightly negatively charged (resting membrane potential of -70 to -80 mV).

clouds form

solid ice forms on leaves.

water droplets form on grass.

the answer is b. dilution