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Biology, 24.03.2020 12:23 gavianacandelar8522

Complete the following text.
Light enters your eye through a clear portion of the sclera, called the 1 . It is curved, so the light rays slightly bend as they pass through it. Light then passes through the 2 humour and then through the pupil. The 3 adjust so the size of the pupil. It is the coloured part of the eye. In the dim light, the Iris 4 and rhetoric up I'll gets bigger; in bright light, the Iris expands and the pupil gets smaller. Directly behind the iris is the 5. This is the structure that can change shape in order to focus light onto the retina, so that we can see the objects clearly. The ciliary muscles, around the lens control the shape of the lens. Behind the lens is a clear gel-like substance called the 6 humour. The light passes through this and strikes the 7 which is the inner most layer of the eye. It contains two types of cells: rods and cones. Rods are sensitive to 8 light, while the cones are sensitive to bright light and colour. The rods and cones send the messages through the 9 nerve, which carries the information to the 10 . The brain interprets the image of the object.

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