I am a pharmacy student from Philippines.. so i would say, pharmacists has a lot opportunities abroad.. and also, in pharmacy, u can learn a lot of things that deals with medicine.. so u would know what kind of medicine is for this ailment.. pharmacist can compound and dispense drugs..=) and only pharmacists can do that... . i don't know what a bio engineer would do.. but i guess, their work would be, fixing machines up that deals with water..