Question

photoreceptor that is sensitive to color and that allow the discernment of fine detail
torus
rod
spiral
cone
cavity

Explanation:

Rods are photoreceptors sensitive to low - light levels but not color. Cones are photoreceptors that are sensitive to color and allow for the discernment of fine detail. A torus is a geometric shape. A spiral is a curved shape. A cavity is a hollow space.

Answer:

cone