In addition to the existing Preprofessional, General Studies, and the several Teaching Certification degree programs for the B.S. degree with a major in Biology that require a separate minor, students majoring in Biology have the option of choosing one of two optional tracks that are an expanded major but do not require a minor.

The major in Biology with the track in Organismal Biology is well suited for students who wish a broad grounding across the classical biological sciences with special interests in natural history, evolution, systematics, behavioral biology, field biology, and other environmentally related sciences. Such a background allows students to be broadly prepared for graduate work in many biological and environmental areas. The track in Organismal Biology consists of a minimum of 46 hours with at least 38 hours taken at the upper level. A minor is not required.