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.
Do What You Gotta Do Do What You Gotta Do "Do What You Gotta Do" is a song written by guitarist Pat Flynn and recorded by the New Grass Revival for their 1989 Capitol album "Friday Night in America". The song was also recorded by American country music artist Garth Brooks. It was released in January 2000 as fifth and final single from the 1997 album, "Sevens". The song reached number 13 on the U.S. "Billboard" Hot Country Singles & Tracks (now Hot Country Songs) charts and peaked at number 18 on the Canadian "RPM" Country Tracks chart. The song was issued over two years