when a providers profile includes the description - submissive - what type of activity is she allowing or will generally accomadate
or does it mean she is just a limp doll?

I can say with utmost certainty that I am not a limp doll.  I love to move with my partner, as it makes the sensation more pleasurable for both.  I am not always in the submissive position as a lover, but even when I am, I move .

A word to the wise.  Ask a girl what her limits are if she describes herself as submissive.. without being explicit.  Not all gentlemen are interested in D/s play, so she's not going to expect it unless you tell her you are interested in it, and she is not going to be happy if you spring it on her unexpected.

limp doll..lol lol
No silly, it means that she will allow you to play the roll of the "Dominant" one   as long as you follow her rules.
Jay