eye:
-cornea: clear covering on iris/pupil
-sclera: white part of eyeball
-pupil: size depends on how much light makes the iris contract
-lens: refracting mechanism that changes shape to focus light on the back of the eye
-cones: at posterior portion of retina, responsible for color & sharp vision in bright light
-rods: scattered in retina, responsible for vision in dim light & peripheral vision
-conjunctiva: the mucous membrane that covers the front of the eye and lines the inside of the eyelids
ear:
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