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Different kinds of light sensitive organs are found in a variety of organisms. The simplest eyes do nothing but detect whether the surroundings are light or dark, while more complex eyes can distinguish shapes and colors. The visual fields of some such complex eyes largely overlap, to allow better depth perception, as in humans; and others are placed so as to minimize the overlap, such as in rabbits and chameleons.
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The structure of the mammalian eye can be divided into three main layers or tunics whose names reflect their basic functions: the fibrous, READ ON...
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When, for example, looking out of the window in a moving train, the eyes can focus on a 'moving' tree for a short moment (through smooth pursuit), until the tree moves out of the field of vision.[12][15] The retina contains the photosensitive rod and cone cells and associated neurons. the corneal endothelium) and the iris, whereas the posterior chamber is between the iris and the front face of the vitreous. The iris, between the lens and the first humour, is a pigmented ring
Its requirement for high intensity light does cause problems for astronomers, as they cannot see dim stars, or other objects, using central vision because the light from these is not enough to stimulate cone cells.The structure of the mammalian eye can also be divided into three main layers or tunics whose names reflect their basic functions: the fibrous tunic, the vascular tunic, and the nervous
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Eye of the Tiger - Wikipedia, the free encyclopedia
Eye of the Tiger was a song performed by the American rock group, Survivor. It was released on January 1, 1982 and was written at the request of Sylvester Stallone for the film Rocky III. The song ...
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Hello, you either have JavaScript turned off or an old version of Macromedia's Flash ... Aragorn --Eye of the Tiger(Rocky)--Requiem for a Dream Remix 08:08
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