(Prereq: A grade of ‘C’ or better in MSCI 111/MSCI 111L, MSCI 112/MSCI 112L and BIOL 122/BIOL 122L) (Coreq: MSCI 302L) Study of the adaptive and evolutionary mechanisms by which organisms are able to occupy the various marine habitats. The evolutionary development of the diversity of marine organisms. F, S.