This text is part of the Oxford Revision Guides series, which are reissues of the two series, GCSE Revise Through Diagrams and Advanced Revision Handbooks, now combined with newly branded covers. The GCSE titles have extra 16-page sections on revision techniques and sample questions for the new GCSE syllabuses, first examined in June 1998. This book covers the GCSE biology syllabus and can be used for group work or individual study. Each topic is summarized on a single page and diagrams and concise notes help students to revise.