Barron's AP Biology, 4th Edition

I took AP Biology in my freshman year because there were not enough seniors in the class so my counselor just randomly put me in the class. The class was very tough; I got 81 for the final grade but got 4 out of 5 in actual AP exam which is a pretty decent grade. I had used AP Biology prep book from Princeton Review, Kaplan, and Barron's and Barron's worked the best for me!



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