Final answer:
The receptors in the eye that are insensitive to low light levels but allow color vision are called cones, not rods. Rods are responsible for vision in low light conditions and detect shades of gray, while cones are responsible for color vision under more intense light.
Step-by-step explanation:
The receptors in the eye that are insensitive to low levels of light but allow us to see color are called cones. This means that the statement 'Rods detect color, while cones detect only shades of gray' is false. Rods are more sensitive to low light and are responsible for vision in very dark conditions, detecting shades of gray and contributing to peripheral vision. Conversely, cones require more intense light and are responsible for color vision. There are approximately 120 million rods in the human retina, but they do not provide color information. When transitioning from a bright environment to a dim one, it takes time for the rods to become the dominant photoreceptor, which is why it can be hard to see in a dark movie theater initially. If someone has night blindness, it indicates a problem with their rods' ability to transform light into nerve impulses.