What is an antigen? Antigen refers to any foreign substance which on entering the body  stimulates the production of antibodies in the body of the  individual as a part of the immune response.
Gen Z Defined. Gen Z consumers range from ages 2 to 19, though the target range for marketers lies from ages 11 to 16. Gen Z is the most diverse and multicultural of any generation in the U.S. -- 55% are Caucasian, 24% are Hispanic, 14% are African-American and 4% are Asian. Gen Z Beliefs.
Generation X. Born: 1966-1976 Coming of Age: 1988-1994 Age in 2004: 28 to 38 Current Population: 41 million. Sometimes referred to as the âlostâ generation, this was the first generation of âlatchkeyâ kids, exposed to lots of daycare and divorce. Known as the generation with the lowest voting participation rate of any generation, Gen Xers were quoted by Newsweek as âthe generation that dropped out without ever turning on the news or tuning in to the social issues around them.â Gen X is often characterized by high levels of skepticism, âwhatâs in it for meâ attitudes and a reputation for some of the worst music to ever gain popularity. Now, moving into adulthood William Morrow (Generations) cited the childhood divorce of many Gen Xers as âone of the most decisive experiences