Environment, population, interactions, communities, ecosystem.

The Tenth Edition helps you develop a deeper understanding of biology by making connections visually across chapters and building the scientific skills needed for success in upper-level courses. New Make Connections Figures pull together content from different chapters visually, helping you see "big picture" relationships. New Scientific Skills Exercises in every chapter use real data to build key skills needed for biology, including data analysis, graphing, experimental design, and math skills. New Scientific Skills Exercises in every chapter use real data to build key skills needed for biology, including data analysis, graphing, experimental design, and math skills.

Each of the eight units reflect the progress in scientific understanding of biological processes at many levels, from molecules to ecosystems.

"Built unit-by-unit, Campbell Biology in Focus achieves a balance between breadth and depth of concepts to move you away from memorization. Streamlined content prioritizes essential biology concepts and scientific skills that you need to build a solid foundation for future courses. The 4th Edition presents relevant, current content updates and engaging resources. New Visual Overviews present fundamental biological questions, and Study Tips share effective learning strategies to encourage you to learn actively through proven strategies. The new downloadable Active Reading Guide further supports you with self-assessment activities to complete as you read."--