Straight-to-the-point revision and practice with no distractions, this revision guide helps prepare students for the Edexcel International GCSE Biology exam. Including plenty of practice questions covering all the different question formats, this Biology revision guide provides invaluable exam preparation. You can use this book in conjunction with the Collins Edexcel IGCSE revision guide to prepare with confidence. Included in this book: * clear and concise coverage of the exam assessed content * simple and engaging explanations * highlighted key words * a supporting glossary to build vocabulary * lots of quick tests and practice questions to check understanding