In my country, it is often possible to work in a lab during or after undergraduate studies (without being registered for a PhD). The pay isn't very good, but enough to just about survive. Is there a possibility to do this in the UK as well? Is there a difference between UK and European students?

This is not very common in the UK. The difference between UK and other EU students is that although most studentships will pay the course fees of any EU national, they will only pay a maintenance grant to UK residents.

I have Complete my M.Sc,Biochemistry,india. how can apply for P.hd Program in life sciences at canada