<p>I would only take Chem 102 if you don’t remember much from AP Chem. All of Chem 102 and the first half of 104 was all review of my AP Chem class. I actually thought Chem 102 was quite a bit easier than my AP class.
For Bio I’d consider skipping the class that’s not in your major. Skip IB 150 if you’re an MCB major or MCB 150 if you’re an IB major. If you still remember the material from Bio AP I might even just skip both.</p>