<span>When light enters the eye, it first passes through the cornea, then the aqueous humor, lens and vitreous humor. Ultimately it reaches the retina, which is the light-sensing structure of the eye. The retina contains two types of cells, called rods and cones. Rods handle vision in low light, and cones handle color vision and detail. When light contacts these two types of cells, a series of complex chemical reactions occurs. The chemicals causes electrical impulses that are transmitted to the brain and interpreted as light.</span>
The soda can wear away ur enamel and not brushing them can give discoloration also they can become highly sensitive to hot and cold
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A. cancer cells aren't outside cells. they are our own cells that have been damamged over time and mutate to become cancerous
You need to let your muscles rest for a good amount of time therefore 2 minutes is a good enough time for you to feel it start to work and get a drink of water so you can start again.
