Lithospheric plates slide past each other. In California, the North American Plate and the Pacific Plate are sliding past each other along the San Andreas Fault. A fault is a â¦ crack or break in Earth's crust along which movement has occured. The average rate of movement along the San Andreas Fault is five centimeters per year.
Medical scientists usually need a doctorate degree in biological science. Some medical scientists have medical degrees. Medical scientists typically complete courses in biology, chemistry, physics, engineering, mathematics, and computer science.
A physician may earn a Ph.D. in a related field, but is not required to do so to practice medicine. For example, a medical doctor might earn a Ph.D. in immunology and infectious diseases, but he does not need such a degree to treat patients with infectious diseases.octor of Philosophy. A doctor of philosophy, or Ph.D. degree, is typically required for those who wish to pursue careers in academia, but it is also useful in other business and government sectors.