Biology & Life Sciences
OpenStax dominates majors and non-majors intro sequences; LibreTexts fills the upper-division gap.
Courses covered: Intro Biology · A&P I / II · Microbiology
Majors-track intro. Slides, test bank, and LMS integrations included.
The most-searched OER textbook in the US. Full A&P I + II coverage.
Includes clinical focus boxes suitable for allied-health programs.