The biological sciences major offers concentrations in biochemistry and cellular and molecular biology; ecology and evolutionary biology; and microbiology.Continuing, returning, and transfer students must meet progression requirements before declaring a major in biological sciences.

Undergraduate students gain valuable experience in the lab by working under one of the professors; faculty also work extensively with post-graduate level students, often publishing numerous articles on their collaborative experimentation and study. Focus may be on such notable areas as herpes virus or coronavirus research, on studying the impact of viruses on marine and freshwater food webs, or on sequencing genes in pathogenic fungi.