Advice on applying to University?

Universities only look at your grade 12 marks. They will look at your grade 11 marks only for early acceptance. Otherwise they are negligible. When you start grade 12 they will give you a book or a website where you can look at the acceptance averages. They vary from year to year and from school to school. But also keep in mind if you are having problems with sciences now you may want to be open to other programs because science doesn't get easier when you go to university. Trust me I'm currently doing it. But based on your grade 11 grades i dont think you will have any major problems. Just work hard.