Hardest BIOL-B classes at IU
Ranked by average GPA from official grade distributions. Only courses with at least 100 graded students.
- BIOL-B 300: Vascular Plants Average GPA 2.94, 384 students
- BIOL-B 371: Ecological Plant Physiology Average GPA 3.16, 268 students
See also: Easiest classes, IU course catalog, BIOL-B course catalog.