Why are appreciation messages important? what should they include?

It is important to recognized the messages and contribution of employees, suppliers, colleagues, and other associates. Your praise will make them feel good and encourage to further their excellence. These messages can also be a part of employees personnel file. The message should specifically mention the person or people you want to praise or encourage and documents the person's contributions.

I’m not exactly sure what your trying to ask, but if it’s how an organelle is similar to a body system or a part a nucleus is like a in function. but i don’t fully understand what you’re trying to ask