Sex
biological system that determines an individual's sexually reproductive function / From Wikipedia, the free encyclopedia
This article is about sex in biology. For the act of "sex", see sexual intercourse.
Sex is a type of reproduction common among living things. Sex is used by plants and animals, and also by fungi and various single-celled organisms. It usually needs two individuals which are different sexes from the same species. It works by combining genes from more than one source.[1]