It is because it's surface area is responsible for the production of ATP molecules.
Information coming from each eye goes to the opposite-side thalamus, where "inter neurons" receive and help process signals from sensory neurons and shuttle the data to the visual cortex.
Explanation:
Interneurons are the fundamental nodes of neural circuits, allowing message transfer among sensory or motor neurons and the central nervous system (CNS). They show dynamic characters in reflexes, neuronal oscillations, and neurogenesis in the grown-up mammalian brain. Interneurons (also recognized as association neurons) are neurons that are found exclusively in the central nervous system. That means that they are found in the brain and spinal cord and not in the peripheral segments of the nervous system.
Theory of adaptation is valid because scientist can see facts that supported the theory. Adaptation makes organism survive especially in this rapid changing world. For instance, parts of human anatomy like appendix and tail bone were still present in humans but are no longer functional.