Who did the AQA GCSE biology test today?
Did you talk to other people about it? If they found it hard too then chances are the grade boundaries will be really low. I did triple science GCSE a couple of years back and the physics paper was SO hard, I guessed most of the answers. But everyone else found it impossible too, and it turns out the grade boundaries were really low, you only needed half marks or something for an A, which I managed to get! Besides, a C is still a pass! Applying to universities recently, I’ve found that while they scrutinise your A level results, they don’t bother too much about GCSEs as long as you’ve passed them. Anyway, you won’t get the results till August, try not to let it worry you until you know the results for sure. Or you might be worrying for nothing!