Your Eye Cares
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 movements of different body parts are controlled by striated muscles acting around joints. It is attached to the ciliary body, READ ON...
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[7] The thin overgrowth of transparent cells over the eye's aperture, originally formed to prevent damage to the eyespot, allowed the segregated contents of the eye chamber to specialize into a transparent humour that optimized color filtering, blocked harmful radiation, improved the eye's refractive index, and allowed functionality outside of water. Blinking the eyes is, of course, also a reflex. Most creatures will automatically react to a threat to its eyes (such as an object
The fovea, directly behind the lens, consists of mostly densely-packed cone cells. Too much light being let in could damage the retina; too little light makes sight difficult. These are the cells which allow humans and other animals to see by moonlight, or with very little available light (as in a dark room). Further, synaptic convergence means that several rod cells are connected to a single bipolar cell,
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... April 25 , 2002 ), a rapper / singer / actress , also known under the stage name of "Left Eye" , was a member ... The controversy over autopsy photos which had been leaked following her death led to a protest by ...
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