Master IB Biology HL. Succeed in your IB Exams. In this course, you will learn the full IB Biology HL syllabus, master exam strategy, practice IB questions and watch worked solutions. The course is structured by syllabus topic, with practice questions integrated within subtopics. The total time to complete this course is 19 Hours 20 Mins which includes 12 Hours of recorded content and 7 Hours 20 Mins for answering practice questions, distributed across topics.