Hormones are chemical substances produced in one organ that are released into the bloodstream and affect the function of a target organ. Which conditions is required for the target organ to respond to a particular hormone?

presence of receptors in the target cells

Explanation:

A target organ responds to a particular hormone because it bears cells which have receptors for that specific hormone, meaning that a particular cell in a target organ is a target cell for a hormone if it contains functional receptors for that hormone, and cells that do not possess such a receptor cannot be influenced directly by that hormone ie may not be affected by the hormone.

answer: our bodies are made up of mostly water, we rely on it to regulate our body funtions.