Biological factors Biological factors: Biological factors refer to the physical and chemical processes in living organisms that affect behavior and development. These factors can include genetic inheritance, brain function and structure, hormones, and other physiological processes. Genetics plays a significant role in determining an individual's physical characteristics, such as eye color and height, as well as predispositions to certain medical conditions and psychological traits. The study of genetics has also revealed that many complex behaviors, such as intelligence and personality, are influenced by a combination of genetic and environmental factors. The structure and function of the brain are also important biological factors in behavior and development. The brain is responsible for processing sensory information, regulating emotions and behavior, and controlling bodily functions. Differences in brain structure and function can contribute t...