The AP Biology exam is a standardized test administered by the College Board for high school students. It assesses students' understanding of biological concepts and their ability to apply scientific practices. The exam consists of multiple-choice questions and free-response questions, covering topics such as cell biology, genetics, evolution, and ecology. Students typically take the exam at the end of an AP Biology course, which is designed to be equivalent to a college-level introductory biology course. Scoring well on the exam can earn students college credit or advanced placement in college biology courses, depending on the policies of the institution they attend.