CFE HIGHER Biology 2017Watch
At this time because the exam is tomorrow, I've made a checklist of key areas I need to work on, but I'll also go over all the units just in case (because after my physics exam I realised I wish I had went over the course the night before!) and maybe do a bit more on past papers.
Past papers are really ideal at this time, though. Revising the same things over and over again are just the basics, you need to know how to apply it to an SQA-Style question.