BS Ecology and Evolutionary Biology at University of Arizona

Programme overview

Explore the concepts of ecology and genetics in an evolutionary context in the first department of its kind in the world. The field of ecology and evolutionary biology deals with the integration of biological systems across all levels of organization, from molecular biology to global ecosystems. This Bachelor of Science is for the student planning to pursue graduate study or a career in ecology and evolutionary biology, or a related scientific field.

Faculty: College of Science | Duration: 4 years / 120 units | Study mode: full-time | Location: Tucson, AZ, United States

What you will study

Required coursework areas: First Semester Introductory Chemistry; Second Semester Introductory Chemistry; First Semester Organic Chemistry Lecture; First Semester Organic Chemistry Lab; Second Semester Organic Chemistry Lecture.

Official programme page

Application information

Entry requirements

Admission is to the university, not to this major specifically. University-wide first-year requirements: 3.0 unweighted high school GPA in the 16 core academic courses (4 years English, 4 years mathematics, 3 years laboratory science, 2 years social science including 1 year American history, 2 years of the same second language, 1 year fine arts or career and technical education); SAT/ACT scores are not required for admission. Some majors and colleges set additional progression or advanced-standing requirements after admission.

Domestic applicants: USD 12,168 a year (2026-27). FY 2027 published base tuition for the Resident Undergraduate rate band, which applies to main-campus undergraduate programmes. Excludes mandatory fees, college fees, program fees and differential tuition, housing and meal plans. Source

International applicants: USD 42,600 a year (2026-27). FY 2027 published base tuition for the Non-Resident Undergraduate rate band, which applies to main-campus undergraduate programmes. Excludes mandatory fees, college fees, program fees and differential tuition, housing and meal plans. Source

First-year entry: Fall 2027 start term (fall semester begins August 23, 2027 for international students). Transfer entry: Spring 2027 and Fall 2027 start terms.

Spring semester begins January 13 and fall semester begins August 23 for undergraduate international students; for graduate students spring begins January 14 and fall August 25.

First-year, Fall 2027: application opens August 1, 2026; Early Action deadline November 1, 2026 (priority consideration for admission, merit aid and the W.A. Franke Honors College), with decisions beginning January 15, 2027; later applications move to Regular Decision, considered on a space-available basis. Enrollment fee deadline is May 1.

Transfer: Spring 2027 applications close December 1, 2026; Fall 2027 applications open January 1, 2027 and close June 1, 2027.

The undergraduate application fee is $50 for Arizona residents, $80 for non-Arizona U.S. residents and $85 for international students; apply through the Common App. SAT/ACT scores are not required for admission.

Apply through the official page: https://www.arizona.edu/admissions/undergraduate/first-year

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