Book excerpt: Fully revised and updated content matching the Cambridge International AS & A Level Biology syllabus (9700). Endorsed by Cambridge International Examinations, the Fourth edition of the AS/A Level Biology Coursebook comprehensively covers all the knowledge and skills students need during the Biology 9700 course (first examination 2016). Written by renowned experts in Biology teaching, the text is written in an accessible style with international learners in mind. The Coursebook is easy to navigate with colour-coded sections to differentiate between AS and A Level content. Self-assessment questions allow learners to track their progression and exam-style questions help learners to prepare thoroughly for their examinations. Contemporary contexts are discussed throughout enhancing the relevance and interest for learners.