Final answer:
A system is a complex whole with smaller connected parts. In biology, living things are organized hierarchically, with organ systems being groups of organs that work together to carry out specific functions. The correct naswer is A.
Step-by-step explanation:
A system can be defined as a complex whole with smaller connected parts. In biology, living things are highly organized and structured, following a hierarchy from atoms to organs. For example, organ systems are groups of organs that work together to carry out specific functions, such as the digestive system.
In physics, a system is an object or a collection of objects considered without internal structure, essential in fields like particle physics. Systems follow conservation laws such as for mass-energy and electric charge. Biologically, systems can be organ systems in organisms, like the digestive system, performing complex life functions.
A system can be defined in physics as an object or a collection of objects that are treated as having no internal structure. In particle physics, this concept is crucial as it deals with the substructures of atoms and the search for fundamental particles which compose all systems. Systems are governed by conservation laws, such as those for mass-energy and electric charge. Considering everyday objects at the microscopic scale, we recognize that they are composed of atoms, which are themselves systems comprised of subatomic particles like protons, neutrons, and electrons.
From a biological perspective, a system can also refer to entities like organ systems in living organisms. An organ system is a group of organs that work together to perform complex functions necessary for life. For example, the human digestive system involves various organs cooperating to process food, from ingestion to nutrient absorption.