Habitat - The specific geographical area or physical environment that is inhabited by an organism or a population of organisms.⏎
Germ Theory - A theory in medicine stating that microorganisms are the causative agents of infectious, contagious diseases.⏎
Infectious Disease - A type of illness caused by a pathogenic agent, including viruses, bacteria, fungi, protozoa, parasites, or abnormal proteins known as prions.⏎
Globalization - The process by which regional economies, societies, and cultures are becoming integrated through a global network of trade, migration, communication, and the spread of new technology.⏎
Mortality - The number of deaths in a given time or place.⏎