Unless you have a really strong foundation in biology, I don't think you can just use the DATbooster notes, and I'm not sure it would be easy to even understand some of the cards. They are created to use in conjunction with the notes and videos, and work like a review to prevent you from forgetting things you have learned in the notes. The booster cards were an amazing resource for me, especially it saved me so much time from making my own cards and taking notes, but they were great because it cemented the stuff I learned from the feralis notes