670 on sat2 bio froshie. should i retake?

<p>I got a 670 on sat2 bio as a freshman b/c i wanted an extra sat2 and didn't want to take ap bio. Should I retake? I'm a junior now though. I really don't remember most of the stuff. I'm really using it as just an extra sat2. I'm aiming for very competitive schools though. If I were to retake the sat2 bio, I would prep over summer a bit and take ap bio next year so i wouldn't be wasting my time. </p>

<p>any suggestions?</p>