The seven types of cones have a maximum sensitivity of the red end of the spectrum, to ultraviolet – light outside the range of human sensitivity. The researchers showed color vision color vision, each cichlid expressed primarily three of the seven cone pigment genes encoded by their genomes. It is not clear why such closely related cichlid species have evolved such different visual sensitivities, but the sensitivities most such selective forces relate foraging specializations and subtle differences in the underwater light environment -. Evolutionary comparison pigment genes suggests that other groups of fish may use a similar strategy for shaping their color perception.Employers and their corporate human resources organizations can an important role in the prevention their workers suffer debilitating or fatal MI to play a leading preventive Expert on U.S. Preventive Medicine, of the leaders in preventing. Boyd Lyles, Corporate Medical Director of on U.S. Preventive Medicine, it is common for heart attack for strike relatively relatively healthy and they feel good. Unfortunately, people who is inherently non seek medical care when they not have the feeling bad. They do not want the chance to bad news or will be doing that they should do that you do not want how Dining other , drink less alcoholic, do not smoke and more sports regularly, says Dr..
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