Collins AS Biology for AQA is the ideal resource to support you through the 2008 AQA GCE course. It has been developed with the help of AQA examiners to ensure a perfect match to the 2008 specification and provides everything you need to succeed in your exam.This book covers AQA Biology AS units:Unit 1 - Biology and DiseaseUnit 2 - The Variety of Living OrganismsThe book includes the following features:• How Science Works feature boxes and assignments• Real world science in context at the start of every chapter• Questions throughout the text, with answers provided in the back of the book• Key fact summaries throughout the text• Stretch and challenge boxes to push the most able students• Exam-style questions at the end of every chapter• Practice synoptic questionsThe website includes the following additional support material:• Mark schemes for exam-style questions from the book• Sample student answers to exam-style questions at 2 levels with examiner comments to show students how to achieve a higher grade• Guidance for ISAs to help students to achieve the best grades in their practical assessments• Mathematical and examination technique guidance to ensure that students know how to best prepare for and handle their exams.Also available from Collins: A2 Biology for AQA, covering AQA Biology A2 units:Unit 4 - Populations and EnvironmentUnit 5 - Control in Cells and in Organisms