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 I Need has done wrong. Despite its sap factor, "What I Need" will likely lap up radio play." The remix version with West Coast rappers Nate Dogg, Shorty Mack, Slim Thug and Snoop Dogg became even more popular being watched more than 200,000 times on YouTube. It's called "Smokin Trees (What I Need Remix)" and produced by Ray J for Knockout Entertainment and was expected to be released as "Smokin Smokin Weed" which featured Ray J, Nate Dogg and Snoop Dogg only, on "Tha Blue Carpet Treatment" by Snoop Dogg. What I Need "What I Need" is a song by American recording