Could I teach myself biology WJEC A-level work?

Hi everyone :smile:

so I do A level biology and last week we were told (unexpectedly) that our teacher has decided to leave and he won't be back. Not only is that quite unsettling, but we have been given a temp. replacement that has never taught the WJEC spec before and has a VERY different teaching style
So my question is, if I solely used the WJEC text book to revise from, would I still get a good grade and pass? I need a grade B to get into uni and this sudden change in teacher has made me very nervous that my class' results will be impacted as a result :frown: