The A-Z Biology Handbook explains all the key terms in your A-level course, and has been completely updated for the new AS and A2 specifications. Each entry begins with a clear definition and is followed by explanation, worked examples and cross-references where relevant. The handbook provides expert advice from a leading author that will help familiarise you with the language of biology -- the more important the term, the more detailed the entry. It is invaluable for students of all biology and human biology pre-university courses, as well as undergraduates. This new digital edition includes free access to a supporting website to make searching for terms even quicker, and a free desktop widget to bring concise definitions instantly to your fingertips. For new students -- terms and concepts clearly explained Throughout the course -- full explanations of important and challenging concepts that will help you tackle your course assignments with confidence For focused exam revision -- detailed revision lists for each exam board and invaluable advice from a leading examiner, both online and in the book