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.
I was born in 1982, according to â¦. List of Generations â I am Gen X (1974 â 1985) American Associations of Law Libraries â I am Gen Y. âGeneration Y are variable â dates ranging as widely as 1979 through 1994 and 1982 though 2000 have been used.â. USA Today â I am Gen Y.