Lipid - A broad group of molecules including fats and waxes that are insoluble in water and are an important part of living cells.⏎
Germ Theory - A theory in medicine stating that microorganisms are the causative agents of infectious, contagious diseases.⏎
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.⏎
Immune System - The system of biological structures and processes that protects the body from foreign substances, including pathogens.⏎
Infection - The entry, establishment, and replication of pathogens inside a host organism.⏎