Question

why do cones not function well in low light?
because they are located at the edges of the retina
because they require high intensity light
because they are color sensitive
because they are fewer in number compared to rods

Explanation:

Cones are photoreceptors in the eye specialized for bright light and color vision. They have a higher threshold for light stimulation, meaning they need high-intensity light to activate and send signals to the brain. Rods, by contrast, function in low light, but cones lack the sensitivity to respond effectively to dim environments. The other options are incorrect: cones are concentrated in the fovea (not retina edges), their color sensitivity is unrelated to low-light function, and their lower count vs rods is not the direct reason for poor low-light performance.

Answer:

Because they require high intensity light