UNLOCK THE SECRETS OF BIOLOGY with THE PRINCETON REVIEW.High School Biology Unlocked focuses on giving you a wide range of lessons to help increase your understanding of biology. With this book, you'll move from foundational concepts to a look at the way biology affects your life every day. End-of-chapter drills will help test your comprehension of each facet of biology, from molecules to mammals. Don't feel locked out!Everything You Need to Know About Biology.• Complex concepts explained in straightforward ways• Walk-throughs of the ins and outs of key biology topics• Clear goals and self-assessments to help you pinpoint areas for further review• Guided examples of how to solve problems for common topics Practice Your Way to Excellence.• 100+ hands-on practice questions, seeded throughout the chapters and online• Complete answer explanations to boost understanding• Bonus online questions similar to those you'll find on the AP Biology Exam and the SAT Biology E/M Subject TestHigh School Biology Unlocked covers:• The Nature of Science• Biomolecules and Processing the Genome• Cells and Cellular Energy• The Human Body• Genetics• Diseases• Plants• Ecology• Biological Evolution... and more!