Master IB Biology SL. Succeed in your IB Exams. In this course, you will learn the full IB Biology SL 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 13 hours which includes 8 hours 15 minutes of recorded content and 4 hours 45 mins for answering practice questions, distributed across topics.