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.
A public health professional theory can solve. problems. Like an expert chef, a theoretically grounded health education professional does. not blindly follow a cookbook recipe, but constantly creates it anew, depending on the. circumstances. Without theory, she or he has only the skills of a cafeteria line worker.