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.
It is the verbal and written information that health care professionals give to patients to ensure they can: 1  Navigate the health care system. 2  Fill out forms. 3  Make appointments.  Understand their health and health conditions and being able to manage 1  them. Prevent disease or complications from disease.  Make healthy decisions.