The Model Answers for EDEXCEL Biology 1 provide suggested answers for all of the activities in the workbook. Students can use the answers to self-mark or the teacher can reserve them for teacher-only use. Clear diagrams, concise explanations, and targeted learning objectives accompany a variety of questions and tasks to create an innovative resource that encourages achievement in students of all abilities. Edexcel Biology Student Workbooks are well suited for classroom or homework use, independent study, review, exam preparation, and extension. About the Specifications: This is a fully revised series for the new Edexcel AS and A Level specifications for Biology B*. The authors gave considerable thought and analysis to their approach in developing a student-friendly yet comprehensive resource for the revised specifications, opting for a flexible, concept-based approach over the context-based design of the Salters-Nuffield A specification. Our choice of a concept-based approach did not preclude a wide and varied use of appropriate contexts for content delivery, but provided greater flexibility to approach topics thematically, scaffold learning, and make conceptual connections across different topics. *Level 3 Advanced Subsidiary GCE in Biology B (8BIO) and Level 3 Advanced GCE in Biology B (9BIO)