Written by an experienced author and former Principal Examiner, this guide provides complete study and revision support for students for WJEC AS Human Biology for the very first time. Designed to be a course companion as well as a revision guide, the book contains a number of features designed to support students in their studies and help them prepare for their final exams. Study support: Essential underpinning knowledge to support course study as well as exam revision; / Ideal for introducing and summarising topics as the course progresses; / Clear headings help students get straight to the point in understanding a topic; / Numerous diagrams clearly explain each concept; / Examiner pointers help students understand and use the underpinning knowledge during their course studies; / 'Quickfire' questions check students' understanding as they progress, with answers at the end of the book; / Key terms are clearly defined on each page; / An index is included to help students get to the information they need.Revision support: Exam-practice questions are included for each topic, with suggested answers included a the end of the book; / Q&A section provides numerous exam-style questions with student answers at two grade levels, and examiner commentaries and marks. Students can see where mistakes are typically made and where marks can be gained; Exam practice and technique section offers advice on how exam questions are set an marked and how to boost grades; / 'Grade Boosts' throughout help refine exam technique, suggest how to improve grades and avoid common mistakes.