What term describes the arrangement of parts to form an organ or living system?

The term that best describes the arrangement of parts to form an organ or living system is biological structure. This concept refers to how various components, whether they are cells, tissues, or organs, are organized and interact to create functional systems within living organisms. Biological structure is critical because it influences how an organism functions, grows, and develops. Each part of the biological structure serves a specific role, contributing to the overall function of the organism, much like how the parts of a machine come together to achieve a certain task.

In contrast, genotype pertains to the genetic constitution of an organism, which dictates potential traits but does not directly refer to the physical arrangement of parts. Phenotype involves the observable characteristics or traits expressed by an organism as a result of the interaction between its genotype and the environment, rather than the structural arrangement itself. Cognitive function relates to mental processes such as thinking, memory, and reasoning, which do not directly address the physical aspects of biological organization.