Challenges and opportunities presented by the marine environment. Relationship between organismal form and physiological function in marine animals and plants. Field trips for collection of live local organisms. Physiology experiments and CT scanning. Offered at Friday Harbor Laboratories. Prerequisite: either BIOL 220, BIOL 240, or FISH 270/MARBIO 270/OCEAN 270; recommended: Q SCI 381 or equivalent. Offered: jointly with FHL 471.