4 credits Covers the interactions of organisms with their environments and each other, as well as population dynamics, biological communities, and ecosystem functions. Three lectures and one 3-hour laboratory. Prerequisite(s): BI 212and BI 213; or ES 102;or ES 111and ES 112. Corequisite(s): BI 340L. (Cross-listed with ES 340.) Grade mode designated on a CRN basis each term. Students should consult current term schedule.