(Chapters 18 - 32) See Preview for full table of contents. ""College Biology,"" adapted from OpenStax College's open (CC BY) textbook ""Biology,"" is Textbook Equity's derivative to ensure continued free and open access, and to provide low cost print formats. For manageability and economy, Textbook Equity created three volumes from the original that closely match typical semester or quarter biology curriculum. No academic content was changed from the original. ""The full text (volumes 1 through 3)is designed for multi-semester biology courses for science majors. Instructors can customize the book. Contains Chapter Summaries, Review Questions, Critical Thinking Questions and Answer Keys Download Free Full-Color PDF, too http: //textbookequity.org/tbq_biology/ Textbook License: CC BY-SA Fearlessly Copy, Print, Remix