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Which region of the retina is highly sensitive due to a dense concentration of cone cells, but lacks rod cells?

1. a)
2. b)
3. c)
4. d) The central fovea is the most sensitive area of the retina, containing a high number of cones but no rods.

Correct answer: d) The central fovea is the most sensitive area of the retina, containing a high number of cones but no rods.

Solution

The fovea centralis is the region of the retina responsible for sharp central vision. It contains a high density of cone cells for color vision and fine detail, but lacks rod cells, which are responsible for low-light vision.

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