The Principles of Biology sequence (BI 211, 212 and 213) introduces biology as a scientific discipline for students planning to major in biology and other science disciplines. Laboratories and classroom activities introduce techniques used to study biological processes and provide opportunities for students to develop their ability to conduct research.

Ellen Wohl offers a survey of the history & present condition of river systems across the US. After describing the biological chemical & physical aspects of the functioning of rivers, she discusses the changes as the result of development & federal management, & examines rehabilitation projects.