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Endosymbiosis Beginning of Paper The Eye is the organ of that you gives your sight. Eyes enable people to perform tasks and to learn about the world that around them. Sight, or vision, is a rapidly occurring process that involves interaction between the eye the nervous system and the brain. When someone looks at an .... Middle of Paper .... over the eye, the liquid from the gland is drained into the nose through the tear duct at the inner corner of the eye. Heavy laughter or crying causes muscles in the upper eyelid to squeeze the lachrymal gland. This produces tears that flow too fast to be drained away. The eyelashes catch many flying particles that otherwise would enter the eye. As further protection, the eyelids automatically close when an object suddenly moves close to the eye. The eye is made of 3 coats, or tunics. The outermost coat consists of the cornea and t .... 2101 words | 8 pages Subscription Length Price Join 30 days membership (recurring) $19.95 90 days membership (recurring) $39.95 180 days membership (non-recurring) $69.95