Different parts of the brain control different functions. Cancer treatments, including chemotherapy, can produce certain effects on these areas of the brain, including impaired cognitive skills, chemo-induced seizures, and memory loss. The cerebral cortex is a sheet of tissue that makes up the outer layer of the brain.
There are three species of wolves: the Red Wolf, the Gray Wolf, and the Ethiopian Wolf. There are a lot more subspecies of wolves, such as: Mexican Wolf.
There is only one species of wolf in the world, Canis lupus. There are only geographical forms just like with humans. Although Asian, African and Caucasian people look very much different, they are all the same species, Homo sapien.