3 programs, side by side

+ Add a program	Western Science OUAC ES ☆ Add to planRemove	Lakehead Biology (includes Environmental Science, Animal Sciences, Plant Sciences, and Biodiversity and Conservation) (Thunder Bay) OUAC AD ☆ Add to planRemove	U of T (Scarborough) Physical & Environmental Sciences - Health Sciences Stream (regular and co-op) OUAC TXH ☆ Add to planRemove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	80–87%“Low to mid 80s”	70%	73–80%“Mid-70s (regular), high 70s (co-op)”
Required coursesforced into your top 6 — options are the row below	ENG4UMCV4U	ENG4UMHF4U	ENG4UMCV4UMHF4U
Choose one ofany of these satisfies it	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U	—	—
Prerequisitesas published	English, ENG4U Calculus and Vectors MCV4U Two of: Advanced Functions, MHF4U Biology, SBI4U +7 more on the program page	Biology (Environmental Science): ENG4U, MHF4U Biology & Chemistry: ENG4U, MHF4U, SCH4U, 1 of MCV4U, MDM4U, SBI4U, SPH4U All other Biology (Science) Majors: ENG4U, MHF4U, 2 of MCV4U, MDM4U, SBI4U, SCH4U, SES4U, SPH4U Alternative Offers If you do not meet the admission requirements for your program of choice but do meet Lakehead University's general admission requirements, you will automatically be considered for an alternate program.	ENG4U MCV4U MHF4 Science prerequisites (SPH4U or SBI4U) for specific disciplines are also required. SCH4U is recommended for specific disciplines. See U of T Scarborough's viewbook +1 more on the program page
More than marks?supplementary application	Yes Unless otherwise noted, required courses must be completed with a minimum average of 70%. Western Integrated Science applicants must submit a supplementary application. More information Usually closes before January 15	Marks only	Marks only
Co-op	Available	No	Available
Degree	—	Bachelor of Environmental Science, BESc, Bachelor of Science, BSc	—
First-year intakewhere published	550	—	340
What you study	Animal ScienceAstronomyBiological SciencesChemistry	Animal ScienceBiological SciencesBiotechnologyGenetics	AstronomyChemistryEnvironmental StudiesGeology
What it is	This is a broad science degree where you choose from fields like biology, chemistry, physics, computer science, geology, and others. You take foundational science courses in first year, then specialize by selecting which science subjects to focus on. Co-op is available, letting you do paid work terms at science-related employers alongside your studies.	You study the science of living things — from individual cells and genes to entire ecosystems and animal behaviour. The Environmental Science degree focuses on how organisms interact with their environment, while other options let you specialize in animal biology, plants, genetics, or microbiology. This program suits people curious about how life works and interested in careers ranging from conservation and wildlife management to research, teaching, or health sciences.	You study physical sciences — chemistry, physics, geology, and environmental topics — with a focus on how they connect to human health and the living world. This stream emphasizes the intersection between earth and life sciences rather than pure physics or chemistry alone. The co-op option lets you do paid work terms at relevant employers alongside your degree. It suits students interested in environmental health, toxicology, or science careers that bridge the natural world and wellness.
The door tomajors you reach through it	biologychemistryearth scienceenvironmental sciencelife sciencesmathematicsphysicsstatistics	biology	health sciences
Entrance awardsat this campus, by average	6 published, 5 with no applicationfrom 85%See them	6 published, 5 with no applicationfrom 80%See them	4 published, 4 with no applicationfrom 85%See them
Source	Western University on OUInfo	Lakehead University on OUInfo	University of Toronto — Scarborough on OUInfo

Ranges are what each university publishes, not guaranteed cutoffs, and limited-enrolment programs often admit above them. Confirm anything you are about to act on with the university; each column links to its source.