Welsh Language edition. Comprehensively revised and updated, this 2nd Edition of the Student Book is endorsed by WJEC offering high quality support you can trust. // Straightforward and concise coverage of the specification, so you can be confident you are covering what's needed for exam success. // New 'Test Yourself' section at the end of each chapter reinforces knowledge with answers provided in the book. // New section on 'Answering exam questions' at the end of each unit gives guidance on command words and how to approach each question // New 'Exam Practice questions' at the end of each unit are taken from actual WJEC past papers with answers provided in the book. // New 'Theory Check' feature accompanies the practical tasks in the book and helps students check their understanding of biology in relation to practical tasks . // Enhanced support for practical skills to enable you to embed your understanding of practical work. // Increased maths support with maths skills and techniques regularly tested throughout. // Clear explanations and diagrams throughout.