Evolution of photosynthesis Evolution of photosynthesis The evolution of photosynthesis refers to the origin and subsequent evolution of photosynthesis, the process by which light energy synthesizes sugars from carbon dioxide, releasing oxygen as a waste product. The process of photosynthesis was discovered by Jan Ingenhousz, a Dutch-born British physician and scientist, first publishing about it in 1779. The first photosynthetic organisms probably evolved early in the evolutionary history of life and most likely used reducing agents such as hydrogen or electrons, rather than water. There are three major metabolic pathways by which photosynthesis is carried out: C photosynthesis, C photosynthesis, and CAM photosynthesis.
What I Do What I Do What I Do is the twelfth studio album by American country music artist Alan Jackson. It was released on September 7, 2004, and produced four singles for Jackson on the Hot Country Songs charts: "Too Much of a Good Thing" and "Monday Morning Church" both reached #5, while "The Talkin' Song Repair Blues" and "USA Today" both reached #18. "What I Do", however, was the first album of his career not to produce any #1 hits. The Wrights, a duo composed of Adam and Shannon Wright (the former of whom is Jackson's nephew) are featured as background