Based on our well-known Level 3 Biology Learning Workbook, this book covers all three Level 3 Biology external Achievement Standards 3.3 (91603), 3.5 (91605) and 3.6 (91606). Features brief, clearly explained theory, plenty of illustrations, examples and a full set of activities with answers in the back of the book. Use throughout the year to support classroom work, to help with external assessments to revise for end-of-year exams.