Biology: AS and A Level meets the requirements of the Cambridge International Examinations (CIE) syllabus in Biology AS and A Level. In one volume, this full colour textbook covers both the AS Level syllabus and the core A Level syllabus. The A Level Optional Modules are covered in the Cambridge Advanced Science books: Mammalian Physiology and Behaviour, Microbiology and Biotechnology, Growth, Development and Reproduction and Application of Genetics. Each chapter starts with a list of learning objectives. Questions throughout the text help reinforce students' understanding and the past examination questions aid revision. The accessible language ensures that the material is suitable for all students, including those for whom English is not their first language. The book has been written by experienced teachers and lecturers, with senior examining roles.