which sections of bio to supplement?

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I hear a lot about supplementing kaplan bio for classification/ecology/evolution, but what other sections should be supplemented to score higher than 20. I have the kaplan white book and noticed its a little more detailed than the blue book, especially in plant biology. for those who have score above a 20 in bio and used the white/blue book, what questions did u see that were outside of kaplans review? thanks for your help!