Tbf biology is a bit of an outlier with those choices. Is there any other science subject she might like to do? – as if she wants to take biology further, that will help.
That might include maths, PE, geography, psychology?
Or could she take biology, business and some other humanities type subject – Eng lit, history, Phil and ethics, gov/pol, drama, film studies?
I know you say she wants to stick with those subjects but it sounds as tho it may be a problem. The reason they are stuck together is bc I imagine very few people will want to take media and biology. They have to timetable some subjects alongside others, obviously. When I was in my (very small) sixth form you couldn't take geography and French which seems surprising to me now. So there will always be combos that are impossible.
What else is she doing well at in GCSE? What sort of PGs does she have?
Edited to add: DD was set on doing music and then switched to French after a week; DS2 was all for maths and FM and when I suggested biology as well/instead he looked doubtful; he has ended up doing a degree in it! She may well change her mind over the net six months.