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
Ghetto Day/What I Need 12-inch single US cassette single Credits adapted from the liner notes of "Storyteller". Recording and management Personnel for "Ghetto Day" Personnel for "What I Need" Ghetto Day/What I Need "Ghetto Day"/"What I Need" is the second single from American singer-songwriter Crystal Waters' second studio album, "Storyteller" (1994). It was produced by The Basement Boys and released in June 1994 by Mercury Records, A&M Records and A&M's division AM PM. Waters and Sean Spencer wrote "Ghetto Day", which is a funk song that contains samples from The 5th Dimension's song "Stoned Soul Picnic" and Flavor Unit's "Flavor Unit Assassination Squad". According