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
Here Is What Is Here Is What Is Here Is What Is is the fifth studio album by Canadian songwriter and record producer Daniel Lanois. It was first released in December 2007 as a high-quality download, and later released on CD on March 18, 2008. The album is the result of the same project that led to the 2007 documentary "Here Is What Is" that premiered at the 2007 Toronto International Film Festival in September. The movie documents the aesthetics and creative process behind Lanois' approach to music making and recording. The album has been presented as a direct soundtrack to this film, and