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Question: 1 / 2700

What type of light do cones in the eye respond to?

Low-intensity illumination

High-intensity illumination

Cones in the eye are photoreceptor cells that are primarily responsible for color vision and function best in bright light conditions. They are densely packed in the fovea, the central part of the retina, where visual acuity is highest. Unlike rods, which are sensitive to low-light levels and are more active in dim conditions, cones require higher intensity illumination to activate effectively.

This is why high-intensity illumination is the correct response; it allows cones to perform optimally, enabling the perception of fine detail and the full spectrum of colors. This distinct function of cones is crucial for tasks requiring color discrimination and detail recognition, such as reading or recognizing faces, which are not possible in low-light conditions where rods are the dominant photoreceptors.

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Darkness

Colorless light

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