I found out that at the first few pages of TYS, theres a syllabus list which is quite extensive. I
took a look at it clearly states that the topics that needed to be
learned. I was thinking, can I use it as a general guideline to
what I should revise on, and not just consuming the knowledge of
the whole Biology book which is thick and regurgitating all of them
? That case, I have lesser to study and more to focus.