I've added a randomization feature to the vocabulary pages. I think this is important, because people tend to memorize terms in a list based on their positions in the list. Don't underestimate the importance of vocabulary. If you don't know the meanings of biological terms, you won't be able to make sense of many of my test questions. On the other hand, if you know the terms WELL, you'll probably realize that many of my test questions are really quite obvious. This can have a big effect on your grade.