This volume provides biology students and teachers a cluster of fleshed-out modules. Each chapter consists of a concise set of notes interspersed with key questions to test students' knowledge and understanding, and to consolidate the learning process. Each chapter is followed by a varied selection of exercises designed to give practice in and preparation for the end-of-chapter assessment. Other features include an assessment pack, containing end-of-chapter assessments, record of assessment summary sheets and answers to questions. The text can be used as an alternative to SCE Higher-Grade Biology for students who are likely to study the Higher course; and can be used as a Pre-Higher course for students who require a preparatory year before tackling SCE Higher Biology or other areas of further education; can be used as part of the General Science course for senior pupils who may choose one or more modules from the book to add to modules from science disciplines. James Torrance and his team are the authors of Standard Grade Biology, Problem Solving in Biology, Higher Grade Biology and Higher Grade Biology Multiple Choice Tests.