OCB 1000C - Introduction to Marine Biology OCB 1000C - Introduction to Marine Biology (3 Credit Hours) (A.A.) This course meets area V of the A.A./A.S. general education requirements. This course is intended for non-science majors and is an introduction to the scientific study of marine organisms and their ecological environment. The general objective of this course is to give a detailed introduction to the study of marine organisms, their environment and their ecological interactions. Additional special fees are required. View class scheduling information for this course.