Hey there!

Life Science is a field and Biotechnology is a course within that field .

So, if you major in Biotechnology, you are majoring in a subject from the field of Life Sciences. And the jobs depends on what interest do you hold.

Majoring in a subject in the field of Life Sciences, opens the gates of research work and gives you an advantage of becoming a scientist. Though it may not be the highest paying job, it still pays good. Plus, there is a huge demand of people specializing in any subject in the life science field.

Hope this helps. Good luck!