As with oceanic-continental convergence, when two oceanic plates converge, one is usually subducted under the other, and in the process a trench is formed. The Marianas Trench (paralleling the Mariana Islands), for example, marks where the fast-moving Pacific Plate converges against the slower moving Philippine Plate.
A bachelor's or master's degree is typically required for entry-level marine biology research jobs, such as those at private research organizations and biotechnology companies. Doctoral degrees are usually required for faculty positions and other jobs that allow you to follow your own research interests.
Bachelor's degree programs specifically in marine biology usually have required courses in general biology, cell biology, ecology, and evolution. Elective courses, which allow students to concentrate on specific areas of interest, might include marine mammal biology, vertebrate zoology, tropical ecosystems, and fish ecology.