Answer:
Explanation:
Electricity is a flow of tiny particles called electrons which can travel through wires. This flow is often called an 'electric current'. Just like water, which can only flow down a hill, an electric current can only flow if there's something to give it a 'push'.
sorry if im incorrect
The nervous system and the integumentary system<span />
Hyaluronic acid, <span>also called </span>hyaluronan.
