Final answer:
A system is an object or collection of objects treated as having no internal structure. It can pertain to different contexts like physical systems in physics, organ systems in biology, and social structures in sociology. The term is also relevant in discussing matter and energy transfers in scientific disciplines.
Step-by-step explanation:
The term system can refer to various concepts depending on the context in which it is used. Generally, a system can be defined as an object or a collection of objects that are considered as having no internal structure. In the context of physics, for example, a mechanical system could be a set of objects whose motions are of interest, such as the balls on a billiard table. When speaking of biology, an organ system is a group of organs working together to perform a complex function, like the skeletal system which provides structure and protects internal organs. In terms of sociology, a system might refer to social structure, which is the set of routine activities and objects organized within a society to accomplish specific functions such as community decision-making or religious observances. Furthermore, when discussing energy, system refers to the matter and environment involved in energy transfers, where the order of a system is linked to its entropy, a measure of disorder.