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 You Need (Stacy Lattisaw album) What You Need (Stacy Lattisaw album) What You Need is the tenth and final studio album by American contemporary R&B singer Stacy Lattisaw, released October 17, 1989 via Motown Records. It did not chart on the "Billboard" 200, but it peaked at #16 on the "Billboard" R&B chart. It was also Lattisaw's final album before she retired from the music industry. Four singles were released from the album: "What You Need", "Where Do We Go from Here", "Dance for You" and "I Don't Have the Heart". "Where Do We Go from Here" was the most successful single from the album,