Final answer:
Relations between organizational functions that are dependent on each other are known as functional interdependence, a concept closely related to the sociological theory of functionalism.
Step-by-step explanation:
Relations between organizational functions, where one function or task is dependent on others, are known as functional interdependence. This concept aligns with the framework of functionalism within sociological theory, which sees society as a complex system with interrelated parts working together to promote solidarity and stability.
To further illustrate, at the organismal level in biology, various organ systems work in unison to support the life and functions of the organism, paralleling the idea of functional interdependence in an organizational context where different departments or functions support the overarching goals of the company.