you might be able to apply for special consideration on account of having a "bunched" timetable. i know some people who got notes from their department last time round saying this was being done automatiaclly, but seeing as you're a nat-sci with exams from all over the place you might have to chase it up yuorself.
I don't think it's worth much, but it does mean they should give you the benifit of the doubt if any of your marks are boarderline...
Give me 1000 men crazy enough to conquer hell and I will do it. - Lord Comander Solar Macharius
Whatever you want, I'm willing to put wave after wave of my men at your disposal to get it. - Zap Brannigan
-And yes, I know I spelt chronocidal wrong -