of Pearson's MyLab & Mastering products exist for each title, including customized versions for individual schools, and registrations are not transferable. In addition, you may need a CourseID, provided by your instructor, to register for and use Pearson's MyLab & Mastering products.   Packages Access codes for Pearson's MyLab & Mastering products may not be included when purchasing or renting from companies other than Pearson; check with the seller before completing your purchase.   Used or rental books If you rent or purchase a used book with an access code, the access code may have been redeemed previously and you may have to purchase a new access code.   Access codes Access codes that are purchased from sellers other than Pearson carry a higher risk of being either the wrong ISBN or a previously redeemed code. Check with the seller prior to purchase.   -- Campbell Essential Biology with Physiology with MasteringBiology®, Fourth Edition, makes biology irresistibly interesting for non-majors biology students. This best-selling text, known for its scientific accuracy and currency, makes biology relevant and approachable with increased use of analogies, real world examples, more conversational language, and intriguing questions. Over 100 new MasteringBiology activities engage students outside of the classroom, plus new PowerPoint® presentations on issues like infectious disease and climate change offer a springboard for high-impact lectures.   Campbell Essential Biology with Physiology… make biology irresistibly interesting.

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