Question

practice it
photoreceptor that is sensitive only to the intensity of light
bolt
handle
coil
rod
stick

Explanation:

In the context of photoreceptors in the eye, rods are photoreceptor cells that are highly sensitive to light intensity. They are responsible for vision in low - light conditions. Bolts, handles, coils, and sticks are not relevant terms for photoreceptors sensitive to light intensity.

Answer:

rod