The central nervous system CNS is responsible for integrating sensory information and responding accordingly. It consists of two main components: The spinal cord serves as a conduit for signals between the brain and the rest of the body. It also controls simple musculoskeletal reflexes without input from the brain.
The amount of sunlight would increase because the northern hemisphere is shifted up during winter. The southern hemisphere would be closer to the sun allowing more sunlight during the daytime.