The updated third edition builds upon the features that have made past editions so successful: an engaging writing style; relevant applications; an accessible and instructive art program; an emphasis on problem-solving; and, most importantly, a strong focus on concepts and connections. NEW TO THIS EDITION * Increased clarity and accessibility * More flexible coverage * Biotechnology now in context * New introductory stories * New concepts check questions * Double the amount of in-text worked problems * New data analysis problems * 22 per cent more end-of-chapter questions and problems * New media resources.