Which type of vision do rods provide?

Rods are photoreceptor cells in the retina responsible for vision in low-light conditions, also known as scotopic vision. They are highly sensitive to light, allowing them to detect various levels of brightness, which is especially useful during nighttime or in dim environments. Rods do not contribute to color vision, as they do not respond to the different wavelengths of light that correspond to colors. Instead, they provide black-and-white vision, which is crucial for our ability to see in dark settings. This specialization allows us to detect movement and shape in low-luminosity conditions. Therefore, the correct answer highlights the primary function of rods in facilitating vision when light is scarce, distinguishing them from cones, which are responsible for high-detail and color vision in brighter settings.