Difference between coursesWatch
I think basically biosci is just broader than biomed and involves more stuff like evolution, classification and stuff like that. I'm in my first year of a biology degree and I do a lot of the same courses as people on biomed, just a couple different where they do more human stuff like anatomy and I do more environmental/zoology stuff.
That being said, it does depend on the uni you choose. Some unis seem to think that biomed is the only biology worth doing and so you'll do mostly that even if you do a biology degree and other seem to think that if you're doing biology instead of biomed/med you obviously hate anything related to humans and you have to do loads of animal and plant stuff....