Sexual differentiation in humans Sexual differentiation in humans Sexual differentiation in humans is the process of development of sex differences in humans. It is defined as the development of phenotypic structures consequent to the action of hormones produced following gonadal determination. Sexual differentiation includes development of different genitalia and the internal genital tracts, breasts, body hair, and plays a role in gender identification. The development of sexual differences begins with the XY sex-determination system that is present in humans, and complex mechanisms are responsible for the development of the phenotypic differences between male and female humans from an undifferentiated zygote. Females have two X
What Is Love An official music video was released directed by Soulvizion. It features the Dutch professional basketball player Don Rigters who plays the role of David Rose, a basketball player who is severely injured trying to make a comeback to the game with encouragement from his girlfriend, (played by Melissa Kanza), his three teammates, (Alkenah Wansing, Jeroen Jansen and Lindy Chippendel) and by his basketball coach (played by J E Rigters). What Is Love "What Is Love" is a song recorded by Trinidadian-German Eurodance artist Haddaway for his debut album, "The Album". The song is recognizable by its refrain "What is love?