Question

what are the roles of rods and cones in the retina?1. rods control the size of the pupil, and cones focus the light.2. rods invert the image, and cones project it onto the retina.3. rods are excited by low light, and cones function in bright light to provide color information.4. rods detect color in bright light, and cones detect low levels of light.

Explanation:

Rods are photoreceptors sensitive to low light levels, enabling vision in dim conditions, while cones are active in bright light and are responsible for color vision and sharp central vision. The correct option matches this functional distinction.

Answer:

Rods are excited by low light, and cones function in bright light to provide color information.