Excellence in Biology Level 3 has been fully updated to take the realignment of Level 3 Biology into account. This resource has a highly visual approach and presentation. Hundreds of specially drawn illustrations, all in full colour, help students to understand biological concepts. The text includes comprehensive coverage of external NCEA Level 3 Achievement Standards and also the internally-assessed a How animals maintain a stable internal environmenta and a Human manipulation of genetic material and its biological implicationsa . The content is biologically accurate and rigorous, and maximum priority is given to linking concepts. Each chapter concludes with a summary of essential facts and ideas, and a quick self-test of basics. Extension material is also provided for deeper understanding.