Here's why:

* Hormones: Chemical messengers produced by endocrine glands.

* Target Organs: Specific tissues or organs that have receptors for a particular hormone.

* Receptors: Protein molecules on the surface of cells that bind to hormones, triggering a specific response within the cell.

When a hormone binds to its receptor on a target organ, it initiates a chain of events that ultimately lead to a change in the organ's function.