I was reading through all the different majors in the science handbook to give mean idea what I could study and what sort of subjects I should think about doing next year to keep my options open. Most of the ones I thought sounded pretty interesting said maths, chem and bio in first year. Thing is, I haven't done bio at all this year so I was wondering whether or not I should have a quick look through the HSC course to get a vague idea of what most people would know or if the courses are pretty basic anyway and so it should be relatively easy to pick up?