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.
Technically, Cindy is correct. All dog breeds are still placed in the same species Canis lupus familiaris, which means they are a subspecies of wolf. That's right, wolves and dogs are the same species. There are currently 36 species of wild dog. Then there is the domestic dog with dozens of breeds. However, the terminology may be outdated and incorrect. This paper says that dogs, genetically, are now 4 clades.