The Advanced Placement Biology course is designed to be the equivalent of a college introductory biology course, usually taken by biology majors during their first year of college. After showing themselves to be qualified on the AP examination, some students, as college freshmen, are permitted to undertake upper-level courses in biology or register for courses for which biology is a prerequisite. Other students may have fulfilled a basic requirement for a laboratory-science course and will be able to take other courses to pursue their majors. The AP Biology course is designed to be taken by students after the successful completion of both a high school biology and a high school chemistry course. It aims to provide students with the conceptual framework, factual knowledge, and analytical skills necessary to deal with the rapidly changing science of biology. The school currently uses an alternating day block schedule. AP Biology is a 1.5 credit course meeting every day for the first semester and every other day the second semester. The course is one letter grade weighted.