Which field of study focuses on the processes or functions of living organisms?

The field of study that focuses on the processes or functions of living organisms is physiology. Physiology examines how the various systems of the body work, how they interact with each other, and how they respond to internal and external stimuli. It encompasses a wide range of processes, such as respiration, circulation, digestion, and cellular functions, providing a comprehensive understanding of how life operates on both a microscopic and macroscopic scale.

In the context of the other options, while biochemistry involves the chemical processes and substances that occur within living organisms, it is more focused on the molecular level rather than the overall functions. Anatomy, on the other hand, is primarily concerned with the structure and organization of living organisms, rather than their functions. Microbiology deals specifically with microorganisms, such as bacteria and viruses, and their interactions with living hosts, which does not encompass the full range of processes in larger organisms. Thus, physiology stands out as the discipline dedicated to understanding the dynamics and functions of living systems.