Dentistry entry requirements a t QMUL

Hi,

I'm looking to study Dentistry in uni and want to just clarify something with the entry requirements on the Queen Mary uni site:

It states that you need 'Chemistry or Biology' and 'Another Science or Maths'.
Does this mean I can take Biology and Chemistry to fill in the first requirement and the 'Another Science or Maths' requirement? Along with of course 2 other A levels like Psychology and History. If this is the case and I don't choose maths, is there a minimum grade I had to get at GCSE because I didn't take it for A level? Sorry for lots of questions but the site isn't too in-depth.

Here is the link: http://www.smd.qmul.ac.uk/undergraduate/courses/A200/index.html
[2017 results]