Chapters organized from simple to complex Exercise including past HKCEE, HKAL and overseas exam questions helps develop problem-solving skills Misconception points out students' common misconceptions identified in public exams Quick check enables students to check their understanding of concepts after a section Practical helps students master biological knowledge and practical skills in SBA Assignment provides guidelines for the non-practical parts of SBA STSE connection covers issues about the interconnections of Science, Technology, Society and Environment Historical note provides historical development of key biological concepts Reading to learn provides scientific readings with questions to test if students can apply their knowledge to unfamiliar cases and their understanding of nature and history of Biology Questions are graded in levels of difficulty Hint guides students to answer difficult questions