Some biology of sexuality.
D000728:Androgens / Q000502:physiology; D000818:Animals; D001070:Appetitive Behavior; D002987:Clitoris / Q000502:physiology; D004285:Dogs; D004967:Estrogens / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D009948:Orgasm / Q000502:physiology; D011323:Primates / Q000502:physiology; D012733:Sex Differentiation; D012725:Sexual Behavior / Q000502:physiology*; D012726:Sexual Behavior, Animal; D014621:Vagina / Q000502:physiology
D000728:Androgens; D004967:Estrogens