Biology

This book is available for free at http://openstaxcollege.org/textbooks/…
Biology is grounded in an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand. To meet the needs of today’s instructors and students, some topics have been condensed and combined; for example, phylogenetic trees are presented in the various ways they are currently being developed by scholars, so instructors can adapt their teaching to the approach that works best in their classroom. The book also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand—and apply—key concepts.