It's not hard, I can reassure you since my school does compacted curriculum, so I'm currently doing bio and eng adv this year for my HSC. Some parts may want to make you rip your hair out, but trust me, you'll be fine. Just have a look at the syllabus provided by NESA, that helps by a lot. Also, just ensure you don't fall behind too much, that will disadvantage you by a LOT.is biology hard in year 12? everyone has mixed opinions on bio
I wouldn't necessarily recommend not putting in any effort, since 30% does seem to be quite a large number in terms of weighing. Maybe, since you seem to not really want to try as hard, just aim to pass. But again, it's all up to you as to what you'd infer to be best.mine are 30%