<p>Similar to the physics thread (<a href="http://talk.collegeconfidential.com/ap-tests-preparation/1680449-ap-physics-1-2-c-s-vs-ib-physics-sl-hl.html">http://talk.collegeconfidential.com/ap-tests-preparation/1680449-ap-physics-1-2-c-s-vs-ib-physics-sl-hl.html</a>), how would you rank the rigor of AP Biology and IB Biology SL and HL? And, is the topic coverage different?</p>
<p>Anyone ???</p>