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Not only has the book been thoroughly updated to reflect rapid advances, there is more emphasis today on the teaching of concepts and this has led to significant changes in how the material is presented. Technology also plays a greater role in teaching and the Online Learning Center found at http://www.mhhe.com/raven6 and BioCourse.Com provide professors and students alike with an abundance of resources.
Five considerations influenced this revision. They are: 1) Focus on concepts; 2) Reinforcing Ideas; 3) Emphasizing relevance to students; 4) Keeping up with new developments; and 5) Careful editing.
Library of Congress subject headings for this publication: Biology