This ESA Biology Study Guide covers the NCEA Level 1 Biology and Science (Living World) Achievement Standards B1.1 to B1.5 and S1.9 to S1.12. It features brief, clearly explained theory with illustrations, examples and activities for student practice. Answers are given in the back of the book. Use throughout the year to support classroom work, to help with internal assessments to revise for end-of-year exams.