Final answer:
Ciliary photoreceptors are associated with vertebrates, not invertebrates.
Step-by-step explanation:
The statement in the question is false. Ciliary photoreceptors are actually associated with vertebrates, while rhabdomeric photoreceptors are associated with invertebrates.
In the vertebrate retina, the two types of light receptors are cones and rods. Cones, responsible for color vision, are located in the central region of the retina called the fovea, while rods, responsible for dim-light vision, are found in the peripheral regions of the retina.
Transduction of light in vertebrates involves the photopigment rhodopsin, which consists of two parts: an opsin protein and retinal. When light hits a photoreceptor, it causes retinal to change shape, activating rhodopsin and triggering a series of events that ends with the closing of Na+ channels and hyperpolarization of the photoreceptors.