Again, a bit of critical thinking pales in comparison to the amount of content that needs to be rote learned. The majority of students would testify to this because you simply can't deduce any logical thread and say "okay, X idea implies this so therefore it links to Y example. It's not like English where you can BS analysis if you hadn't revised the intricacies of a text; in Biology you can't make up what you are writing, otherwise you'd be punished. As I said before, you either know it or don't - meaning that you don't need intellect to excel in the subject. I tried "understanding" Biology in year 11 and literally failed the course in that period. When I asked the experts on how they studied, it wasn't just the applying of knowledge in response to the verbs, but also the sheer routine of repeating your syllabus notes over and over. So I took upon the advice and memorised the content needed for the first assessment of year 12, and I'm currently coming 2nd out of 20 people in the bio cohort.