That’s a tough question! Just now I am working on eyes so maybe I would say these! Looking more in depth at them, you can notice how intricate the eyes are. They are a piece of art and are designed so well! The iris and the pupil direct the light through your eye and the retina (at the back of the eye) is made up of light sensitive cells which translates what you are seeing into electrical impulses and this information is sent to the brain.. all this in one small organ!! It really makes you think about how your body functions without you even really noticing it.
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