Which statement best defines the relationship between marine biology and oceanography? Marine biology is the study of marine organism of commercial importance; oceanography is the study of all aspects of the ocean. Marine biology is the study of all organisms found in the oceans, while oceanography is the study of the physical, chemical, and geological features of the ocean. Marine biology is the study of the oceans and the organisms that dwell in them; oceanography is the study of physical features of the ocean floor. Marine biology is another name for oceanography.