Contagion - A general term for any disease-causing infectious agent spread by direct or indirect contact.⏎
Climate Change - The process of shifting from one prevailing state in regional or global climate to another. Climate change is typically the preferred term over “global warming” because it helps to convey that the characteristics of climate change are not limited to rising temperatures.⏎
Egg Cell - The female gamete, or sex cell, which carries the hereditary material of the female parent and unites with the male sperm cell during sexual reproduction.⏎
Evolution - The change in heritable traits in a population of organisms over successive generations.⏎
Endemic - The baseline level of disease usually present in a community.⏎