Good lord....is it that time again? I guess it is. Crack out the books, give a little prayer, and study, study, study. Don't forget to take that much needed coffee break every few hours. Your would't want to do something like fall asleep now would you?
For a little help with those studying biology, check out these study guides on my Hubpage:
Study Stuff
Also, check out places like khan academy (the best stuff ever)
Good Luck!