bThis title has been endorsed bybb Cambridge Assessment International Education.b b bWritten by renowned expert authors, our updated resources enable the learner to effectively navigate through the content of the revised Cambridge O Level Biology 5090 syllabus for examination from 2023. - Develop strong practical skills practical skills features provide guidance on key experiments, interpreting experimental data, and evaluating results supported by practice questions for preparation for practical exams or alternatives. - Build mathematical skills worked examples demonstrate the key mathematical skills in scientific contexts supported by follow-up questions to put these skills into practice. - Consolidate skills and check understanding self-assessment questions, exam-style questions and checklists are embedded throughout the book, alongside key definitions of technical terms and a Glossary. - Navigate the syllabus confidently content flagged clearly with introductions to each topic outl