Hey I received a raw 48 for biology in 2022 and this is what I found.
One of the things you will come to learn about bio 3/4 is that many people don't have trouble with actually learning the content. The part of the course that gets people is their ability to answer questions and include key points in their answer that the assessors are looking for.
I achieved a raw 48 in bio, and I did so through spending as much time reviewing marking schemes (VCAA, school, and company) as I did doing the actual exams because they are gold. They will tell you exactly what you need to mention (as you often don't have to write as much as you think you do), and after a while, you will notice patterns in the suggested solutions. This means that future questions will be easier to break down. By the time I got to the exam, I could look at most questions and the number of marks they contained, and pinpoint exactly what points I needed to make before I even started writing. This is what I suggest you practice throughout the year as it will save you time, space on the page, and will make you more confident.
As for what I suggest for incorporating exam questions into my notes, I recommend to ensure you have a solid foundation and understanding of the general concepts before you start answering questions to help hone your knowledge. I found that doing questions in this way helped me nail all of the niche, hidden parts of each topic which set me apart from my peers. But the real key is repetition, and constant practice so you don't forget anything before each SAC.
Hope this helps 🙂