This book is full of clear notes and exam-style practice questions covering every AS Biology topic for the Edexcel exam board. The whole thing's designed to make revision straightforward - everything you need to know is explained simply and thoroughly, helped by full-colour diagrams and plenty of exam-style questions (answers at the back). It includes sections on How Science Works and Interpreting Experimental Data. There's also a sprinkling of jokes to lighten the mood. It's exactly what you need to prepare for your exams!