Biology at Western
Not directly. At Western University you apply to Science (ES), then choose biology at the end of first year, during Intent to Register in March.
The program you actually apply to
Science
80–87%OUAC ESCo-op availableSupplementary application
Prerequisites
- English, ENG4U
- Calculus and Vectors MCV4U
- Two of:
- Advanced Functions, MHF4U
- Biology, SBI4U
- Math of Data Management, MDM4U
When you choose biology
At the end of first year, during Intent to Register in March.
What to watch for
You apply to the Faculty of Science, not to Biology. ES requires ENG4U and MCV4U plus two more from a science/math list. Western flags that SBI4U and SCH4U are 'not required for admission, but required to take first-year Biology / Chemistry courses' — and every Biology module (Major, Specialization, all Honours Specializations) demands Biology 1001A + 1002B AND Chemistry 1301A/B + 1302A/B, plus a first-year physics and math course. Skip SCH4U and you can lock yourself out of the entire department.
The same application also gets you to
Science is the entry point for 7 other majors at Western. You are not choosing between these at application time.
Biology at the other campuses
Compare the entry programs side by side →- AlgomaDirect entry70%
- BrockDirect entry73–77%
- Carletonvia Science - Honours (CT)78%
- Guelphvia Bachelor of Science (BSc) Honours (GZ)80–91%
- LakeheadDirect entry70%
- LaurentianDirect entry70%
- Laurier (Waterloo)Direct entry73–77%
- McMastervia Life Sciences Gateway93–97%
- Nipissingvia Bachelor of Science (PS)70%
- Ontario TechDirect entry70–73%
- Queen'svia Science – Biological and Cognitive Sciences (QSB)80–87%
- TMUDirect entry75–80%
- TrentDirect entry70%
- U of T (Mississauga)via Life Sciences80–87%
- U of T (Scarborough)via Life Sciences73–80%
- U of T (St. George)via Life Sciences (including Psychology)83–90%
- Waterloovia Life Sciences80–83%
- WindsorDirect entryNot published
- YorkDirect entry80–87%
Entry routes were researched against each university’s own program pages in 2026-08-16. Western’s page. Faculties restructure — confirm before you apply.