Question

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

Explanation:

Cones are photoreceptors in the eye. They are sensitive to color (different wavelengths of light) and are responsible for the discernment of fine detail, especially in well - lit conditions. Rods are more sensitive to low light levels but do not contribute to color vision or fine detail as much as cones. A spiral is a geometric shape, a torus is a doughnut - shaped object in geometry, and a cavity is a hollow space, none of which are photoreceptors related to the described function.

Answer:

cone