"Author bio" versus "resume"

One of the agents I'd like to submit to request a resume rather than a bio. Do you have any guidance you can lend on this?

The only direct hit I found was this:
http://www.aroj.com/sample-Communications/Author-Resume.html

With so little in the way of published work - and certainly nothing recent! - I shudder to think what my straight-up writing resume would look like...

Thanks!