Units:3 This course explores the biology, behavior, and function of microorganisms in natural environments with attention to their role in ecologically and environmentally significant processes. One weekend field-trip. Division: Upper Division Requisites: Pre-requisite: BIOL 412 or (BIOL 340 and BIOL 330). Co-requisite BIOL 433D. Permission to enroll: No Special Consent Required Grading mode: Optional Grade Basis Course fees: See class schedule for fee information Weekly: Seminar 2 hrs. Laboratory 3 hrs.