Evolution of human colour vision as 'visual purple' receptor proteins, are encoded by Rh1, OPN2 and RHO genes. They are characterized by extreme sensitivity to light and enable monochromatic human vision in low light or dim conditions. They are broken down into retinal and opsin when exposed to these conditions. Humans have 3 types of photopsin proteins found in the cone cells. Long Wavelength Sensitive Opsin (Red cone opsin) – Encoded by the OPN1LW gene with a λmax of 560 that is found in the yellow-green electromagnetic spectrum despite its name. Its sensitivity to the colour red is still known to be higher than the
Listen to What the Man Said and music are wedded together. Authors Roy Carr and Tony Tyler note about the song that "artful and sensitive production elevate what was originally a piece of inconsequential whimsy into what can only be described as High Pop", also describing the song as "likeable" and "hummable". Author Chris Ingham described the song as "superior pop". The song was also included on the numerous greatest hits compilations, including 1987's "All the Best!" and 2001's "". However, it was not included on the 1978 Wings compilation, "Wings Greatest". Listen to What the Man Said "Listen to What the Man Said" is a