Teach and assess students’ scientific literacy and reasoning skills NEW! Interpreting Data end-of-chapter questions help students learn to use quantitative material by  analysing graphs and interacting with other data. Interpreting Data activities in MasteringBiology help students continue to practice their graph-analysis skills. Process of Science essays appear in every chapter and walk students through each step of the scientific method as it applies to a specific research question.  Engage non-science majors by emphasising the relevance of biology to everyday life NEW!  Why Biology Matters Photo Essays engage student curiosity about biology through the use of dynamic photographs and intriguing scientific observations. Each intriguing science fact is later revisited in the chapter narrative to help students see the link between the everyday application of biology and the chapter material. NEW! Analogies and applications to everyday life have been added throughout the prose and the illustrations, making key concepts easier to visualise and to remember for students who are learning the material for the first time. UPDATED! Chapter threads explore a single high-interest topic throughout each chapter in “Biology and Society” essays, “Process of Science” investigations, and “Evolution Connection” discussions. New topics discussed in chapter threads include Show students the connections between key biological themes NEW! “Major Themes in Biology” are introduced in Chapter 1 to underscore unifying principles that run throughout biology. These themes—Evolution, Structure/Function, Information Flow, Energy Transformations, and Interconnections within Systems--are highlighted throughout the text (and marked with icons at the start of appropriate headings) to help students see the interconnectedness of concepts and to help instructors focus on the big picture ideas in biology.    A Consistent Evolution Theme is further explored in depth in each chapter, in “Evolution Connection” essays.