The Key Concept Review section incorporates a review of each main section from the chapter, with review questions that help the student apply what they have learned, including diagram questions. Revised for the Tenth Edition, the Life Study Guide offers a variety of study and review tools. The Big Picture provides the student with a quick overview of the chapter's main concepts and themes. The Study Strategies section offers suggestions for the most effective ways to study the specific material in the chapter, and points out areas students are most likely to find difficult. The Key Concept Review section incorporates a review of each main section from the chapter, with review questions that help the student apply what they have learned, including diagram questions. Each Study Guide chapter concludes with a Test Yourself section that allows the student to test their comprehension. All questions include answers and explanations.