The dermis, the skin's next layer, is a thick layer of fibrous and elastic tissue (made mostly of collagen, with a small but important component of elastin) that gives the skin its flexibility and strength. The dermis contains nerve endings, sweat glands and oil (sebaceous) glands, hair follicles, and blood vessels.
âAll cancers are caused by genetic mutations, and in some cases we know the processes driving them, for example, tobacco smoking in lung cancer, however, our understanding of the causes of mutation in most cancers is remarkably limited,â Grimmond says.
Cause of Cold War. The cause of the Cold War is debatable. Because the Cold War doubles as a conflict between two countries (the USA and the USSR) and between two ideologies (Capitalism and Communism) several different causes can be suggested:1.he most important thing to keep in mind when looking at the cause of the Cold War is that there is no one, definite cause. The Cold War was a conflict that was ideological, that grew out of World War IIâwhich, itself, grew out of World War I and its aftermathâand that was fought in various ways.