The requirements for sexual reproduction.
D005260:Female; D006182:H-Y Antigen; D006706:Homeostasis; D006801:Humans; D008297:Male; D012098:Reproduction; D012732:Sex Determination Analysis; D012733:Sex Differentiation; D013737:Testis / Q000196:embryology; D013739:Testosterone / Q000502:physiology*
D006182:H-Y Antigen; D013739:Testosterone