[78]
The size of the pupil [[1]] in dim light and Decreases in bright light.

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Detailed Solution

The size of the pupil increases in dim light and decreases in bright light.
The pupil changes its size in order to control the amount of light entering the eye. The size of the pupil changes in response to the amount of light falling on the eye. In bright light, the size of the pupil becomes smaller to let less amount of light enter the eye. In dim light, the size of the pupil increases to allow more light into the eye.

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