Sex, the biological distinction of an organism between male, female or intersex, defined by the gametes it produces (or the reproductive organs it have), in anisogamous species
Sexing, the act of discerning the sex of an animal
Sexual reproduction, a process of combining and mixing genetic traits, associated with the generation of new individuals, by means of meiosis and fertilization
Recombination, the process of mixing genetic traits solely, occurring both in organisms with sexual or asexual reproduction