Evolution of photosynthesis C photosynthesis is the oldest and most common form. C3 is a plant that uses the calvin cycle for the initial steps that incorporate CO2 into organic material. C4 is a plant that prefaces the calvin cycle with reactions that incorporate CO2 into four-carbon compounds. CAM is a plant that uses crassulacean acid metabolism, an adaptation for photosynthesis in arid conditions. C4 and CAM Plants have special adaptations that save water. The biochemical capacity to use water as the source for electrons in photosynthesis evolved in a common ancestor of extant cyanobacteria. The geological record indicates that this transforming event
Do What You Do (Jermaine Jackson song) the past: "Why don't you do what you do / when you did what you did to me?" Its B-side is "Tell Me I'm Not Dreamin' (Too Good to Be True)", a duet with Michael Jackson. The song was sampled by Lil Wayne for "How Could Something" and by Chamillionaire for "Void In My Life". The music video was an imitation of "The Godfather" and supermodel Iman played Jackson's love interest who eventually betrays him by trying to shoot him. After his henchmen take her away, it is not revealed what happened to her. Do What You Do (Jermaine Jackson