Hormone

Real World Example

Imagine trying to get a message to a friend in a crowded room by sending a note through a series of people. Just as you rely on each person in the chain to pass the note accurately to reach your friend, your body relies on hormones to deliver specific instructions to target cells. In this analogy, the note represents the hormone, the series of people are like the bloodstream carrying the hormone throughout the body, and your friend is the target cell that needs to receive and act on the message for proper development or function.