What country do you study in?
What do you mean "can I take up"?
Do you mean, as a career or for further study?
If the former, most engineering degrees 'train' you to be an engineer, ie. I would think it hard to get on a graduate scheme at an engineering company without a degree in engineering. Whereas, for a career in the sciences you don't need such specialisation.
For the latter, your degree should give you the foundation for your further study. Not in terms of the degree subject, but in terms of understanding and learnign skills, regardless of subject.
My advice would be, to a lot of threads that appear on here about choosing degree progams with a career in mind, unless that career requires absolute skills, such as, medicine or engineering, it doesn't matter so much what degree you do. Do the degree because you enjoy it - the world and job market will change before you finish - if you just want to study and learn, there's hardly any point making career choices at school.
Of course, that rant doesn't so much apply to you as you're in your 3rd year - but the answers to my questions at the top would be helpful in getting answers.
