I'd highly recommend this book. It helped me SO much throughout the year, for every test and final. It's concise and you can read through it, scanning the parts you know and learning what you don't.

It's available online here:
http://www.cliffsnotes.com/WileyCDA/CliffsReviewTopic/Biology.topicArtic... [4]
but I'd recommend having one on hand - much easier to study from that way.

Cheers!