<p>So, I'm taking the Bio SAT II on May.
I thought I was O.K... until I took some new practice tests, namely Princeton Review/old Barrons. I get like 650s, and I'm very desperate and concerned.</p>
<p>I bought the new 2007 Barrons book. Would thoroughly reading that book help me? Also how accurate are the scores for practice tests in Princeton Review?</p>