PART 2 of a two book series. For ease of use, the full course work for AP Biology has been published as two companion titles. AP Biology 1 is the companion to this title. CONTENTS of this Book: Metabolism: Energy in Living Systems; Enzymes and Metabolism; The Physiology and Behavior of Organisms: Homeostasis and Energy Allocation; Plant Structure and Adaptation; Comparing Animal Systems; Interactions in Physiological Systems; Defence Mechanisms; Timing and Coordination; Communicating and Responding; Ecology: Populations and Communities; Energy Flow and Nutrient Cycles; The Diversity and Stability of Ecosystems Chapter introductions provide a summary of required knowledge, encapsulating the Essential Knowledge of the AP curriculum framework (2015) and matched point for point. A Key Idea introduces each activity, providing a clear focus and take-home message for the student. New activities to support student-led inquiry and a larger number of activities involving data analysis and modeling. New case studies and required illustrative examples. New easy-to-use coding for weblinks, content and concept connections, and science practices: Science Practices are well supported through integrated activities in both volumes. Concept and Content Connections codes enable students to make important connections across the entire program. New content to support the 13 required practicals. Both volumes include content adjustments and updates in light of the latest (2015) review of the framework and in keeping with the dynamic nature of science. Review activities at the end of each chapter enable students to test their understanding and are ideal as formative assessment tasks. Synoptic activities suitable as summative assessments conclude each section of work.