The Bachelor of Science in Biology at Oregon State University provides an interdisciplinary foundation in the life sciences, combining biological, physical and quantitative sciences with electives that can be tailored to professional goals. Students explore biology from the cellular and molecular level through organisms, ecology and evolution, while choosing from options such as Ecology, Genetics, Marine Biology and Ecology, Physiology and Behavior, Pre-Medicine/Biology, Pre-Veterinary Medicine, Pre-Dentistry/Biology, and Pre-Education Biology.
Curriculum Structure
Year 1: Students establish their scientific foundation through BI 221Z Principles of Biology: Cells, BI 222Z Principles of Biology: Organisms, and BI 223Z Principles of Biology: Ecology and Evolution, alongside General Chemistry I–III and their laboratory components. Professional development begins with BI 197/BI 198 Professional Development I and continues with BI 298 Professional Development for Biologists II, helping students connect their studies with biology and health-related careers.
Year 2: The curriculum moves into more specialized scientific preparation through BI 311 Genetics, BB 314 Cell and Molecular Biology, or BI 370 Ecology, together with Organic Chemistry and CH 337 Organic Chemistry Laboratory. Students also develop quantitative skills through Integral Calculus or Calculus and Probability for the Life Sciences II, and begin statistical training through ST 351 Introduction to Statistical Methods.
Year 3: Students deepen their understanding of biological systems through BB 450/BB 451 General Biochemistry, advanced biology coursework in areas such as Genetics, Cell and Molecular Biology, Ecology or Evolution, and PH 201–203 General Physics for the relevant track. Depending on their interests, students can also begin coursework in areas such as organismal biology, ecology and evolution, cellular and molecular biology, genomics, or quantitative and computational applications.
Year 4: The final year emphasizes advanced biological study, scientific communication and experiential learning, with courses such as BI 319 Communication, Theory, and Practice in the Life Sciences, BI 371 Ecological Methods, BI 373 Field Methods in Marine Ecology, or BI 450 Marine Biology and Ecology. Students complete an experiential learning or integrative biology requirement, which can include BI 401 Research and Scholarship, BI 410 Internship, BI 309 Teaching Practicum, BI 406 Projects: Curatorial Assistant, or approved study-abroad experiences, and finish with BI 498 Senior Assessment and Survey.
Focus areas: Ecology, Genetics, Marine Biology and Ecology, Physiology and Behavior, Pre-Dentistry/Biology, Pre-Education Biology, Pre-Medicine/Biology, Pre-Veterinary Medicine.
Learning outcomes: Apply fundamental concepts in biochemistry, cell and molecular biology, genetics, physiology, organismal biology, ecology and evolution; conduct scientific investigations and analyze data; communicate scientific information; apply critical thinking; evaluate the relationship between science and society; and demonstrate professional skills including ethics, collaboration and career planning.
Professional alignment (accreditation): Oregon State University is institutionally accredited by the Northwest Commission on Colleges and Universities (NWCCU), and the university states that its accreditation was reaffirmed following the NWCCU's 2026 action. OSU also clarifies that NWCCU accreditation applies to the institution as a whole rather than individual degree programs; no separate specialized accreditation is listed for the Biology BS.
Reputation (employability rankings): Oregon State University's Department of Integrative Biology describes itself as nationally ranked, and the university reports a 50.6% career outcomes rate for the College of Science in its 2024–25 First Destination Survey; this College-level figure covers all College of Science graduates and is not specific to Biology.
The Bachelor of Science in Biology at Oregon State University gives students opportunities to develop practical skills through laboratory courses, undergraduate research, field-based learning, internships, and work with biological specimens and scientific equipment. Students can pursue research with faculty across biological disciplines, while OSU’s location provides opportunities to study organisms and ecosystems in diverse natural environments. These experiences connect classroom biology with laboratory investigation, field observation, scientific communication, and career preparation:
A B.S. in Biology at Oregon State University prepares graduates with a broad foundation in biological sciences that can support careers in research, environmental and natural-resource organizations, healthcare, education, and biotechnology. Students can also use the degree as preparation for professional programs or graduate study in biology and related life-science fields.
Career roles: Biological Technician, Laboratory Technician, Environmental Scientist, Wildlife or Conservation Biologist:
Further Academic Progression: After completing the B.S. in Biology, students can continue into graduate-level study in biology and related life-science disciplines, including master's and doctoral programs. The degree can also provide the academic foundation for professional pathways such as medicine, dentistry, veterinary medicine, pharmacy, and other health professions, depending on the student's chosen prerequisites and career plan.


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