Edexcel biology 9-1 combined Watch
revise stem cells bc it wasn't on the specimen
revise all three practicals in paper 1 but i think the microscope practical will come up as the others were on the specimen
revise evolution bc it didn't come up in last years 9-1 external exams we did when we were in y10 so its likely to come up
but i think you should revise everything equally bc we dont know whats exactly gonna come up and there are no past papers as this is a new spec but good luck to everyone hope you all do well
2) investigate the effect of pH on enzyme activity
3) investigate osmosis in potatoes
you should have done all of them in school whilst you were covering the content but if not just watch videos on how to do the practicals because one of them will deffo come up in the exam and you'll be asked how to do it or something along those lines.