Photosynthesis as follows: where A is the electron acceptor. Therefore, in light, the electron acceptor is reduced and oxygen is evolved. Samuel Ruben and Martin Kamen used radioactive isotopes to determine that the oxygen liberated in photosynthesis came from the water. Melvin Calvin and Andrew Benson, along with James Bassham, elucidated the path of carbon assimilation (the photosynthetic carbon reduction cycle) in plants. The carbon reduction cycle is known as the Calvin cycle, which ignores the contribution of Bassham and Benson. Many scientists refer to the cycle as the Calvin-Benson Cycle, Benson-Calvin, and some even call it the Calvin-Benson-Bassham (or CBB)
What You Need from Me of the album. "What You Need from Me" was later released as the second track on the CD single of "This Is Gonna Hurt" on 16 August 2013. "What You Need From Me" received mixed reviews from music critics. Norbert Schiegel of "G+J Entertainment Media" described the song as "sensational," and Dirk Neuhaus of "Country Rock Magazine" called it a "fantastic track," while Adam Carroll from "Seen It Heard It" thought that the song was one of the weakest tracks from "Rocks and Honey", describing Tyler's voice as "rough and beaten" and that her and Vince Gill's voices do not