In addition to differentiation by species, zoology also encompasses other types of research, such as animal physiology, behavioral ecology, evolutionary biology and ethology, the study of animal behavior.
Public health is personal. Public health professionals focus on preventing disease and injury by promoting healthy lifestyles. They implement educational programs, develop policies, administer services, conduct research, and regulate health systems to achieve these goals.
What Are the Qualifications of a Health Inspector? Public health inspectors work for county and state governments to ensure facilities such as restaurants, food-manufacturing plants, grocery stores, public swimming pools and hotels operate in a sanitary and safe way.