Endorsed by Edexcel International, comprised of worksheets that each provide at least half an hour's homework, includes a specification matching grid, clearly coded Foundation and Higher tier questions in a range of styles, includes all necessary reference information, such as data table and equations, arranged ina sequence that mirrors the chapters in "Longman Biology for IGCSE", complemented by the answer book, which provides answers for this book, as well as for the Chemistry and Physics books in the series.