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
What Would You Do? (City High song) from that included on the "Life" soundtrack as it features a sample of Dr. Dre's hit song, "The Next Episode". The song, along with the accompanying music video, is a motivational anthem for single parents dealing with poverty and especially acknowledging all the single mothers who feel forced into prostitution due to the need to support their children. It encourages them to keep strong, and keep going on for the sake of their loved ones, and passes no judgement on their profession. What Would You Do? (City High song) "What Would You Do?" is a song recorded by American R&B/hip