This textbook has been written specifically to meet the needs of students following the AQA AS biology specification and provides thorough, carefully-structured coverage of the subject content. AQA AS Biology has the following special features: /	Extension material /	Examples of applications /	Classic experiments in biological research /	Examiner's tips /	Chapter summaries /	Multiple-choice and exam-style questions /	Integrated material on 'how science works' The author, drawing on his extensive teaching and examining experience, has ensured that coverage is not only comprehensive but also easily accessible and exam-focused, making this text essential reading for all AQA AS biology students. A Teacher Guide containing detailed answers to all the questions in the book is available for separate purchase by teachers....