Biology M Retake?

<p>Though I got one of the highest grades in my APBIO class and a 5 on the AP Biology Test, I scored a 700 on the SAT 2 for Biology M. Obviously if I'm aiming for a top-tier school, that is a low score (the national percentile is only 70% for a 700). </p>

<p>Would it still be worth it to retake the test in November and perhaps get a higher score (I would have to do A LOT of self-studying to catch up on all I've forgotten from 11th grade)?</p>

<p>...Any thoughts on this would be much appreciated...</p>