Biology Grade 11 is one of the titles in the Save Buk series specially written for the new PNG Upper Secondary courses at Grades 11 & 12.   This book gives students concise coverage of the information needed to successfully complete the Grade 11 Biology course. The order of Units in the book follows the order of Units in the Biology Grade 11 syllabus exactly:   Unit 11.1 Living Things Unit 11.2 Nutrition Unit 11.3 Transport Systems Unit 11.4 Respiration and Gas Exchange Unit 11.5 Response to Stimuli Unit 11.6 Reproduction  Plants, animals and humans are studied within each of the above Units, but coverage of micro-organisms in relation to the topics in the Units above, is given in a separate Supplementary Unit. The Glossary/Index at the end of the book, explains the specific scientific terminology that students need to learn for the study of Biology.