Okay for those of you that have Biology, if you're retaking the test, I am attaching some really good videos that should help you more greatly understand the information.
http://www.youtube.com/watch?v=4auXUSY9c54&feature=related
http://www.youtube.com/watch?v=_CXeG5qe8sc
http://www.youtube.com/watch?v=XOAd8tfD6Sg&feature=related
http://www.youtube.com/watch?v=lY0A6cq2ugA&feature=related
http://www.youtube.com/watch?v=jW3AM330gQ0&feature=related
http://www.youtube.com/watch?v=_txqH0RhyCc&feature=related
http://www.youtube.com/watch?v=lijQ3a8yUYQ&feature=related
http://www.youtube.com/watch?v=LK7ERiCy5b8&feature=related
http://www.youtube.com/watch?v=6OFJXw-Pghs&feature=channel
http://www.youtube.com/watch?v=Cb1Fh5M4jI0&feature=channel
http://www.youtube.com/watch?v=N28uXHplmz0&feature=channel
http://www.youtube.com/watch?v=2A1RvoMvKQM&feature=channel
So, you don't need to watch all of these. But you can watch some of the! I have watched all of them!! They are very basic and explain the big points of the chapter we just studied!! :) Enjoy!