Invisible Panels

[TOLprintjockey]

At my work I have access to a Makerbot Replicator 2x. It's new to my work place and I've become sort of an unoffical 3D printer guy. At the moment someone has made a request for a traffic cone model from thingiverse.com. The software I'm using is Makerware, and I have pretty good grasp with using it. What I'm having issues with is that there are these "panels" that show up only after I preview the file I'm exporting, and when I actually print the traffic cone.

What I'd like to do is remove them or not have them print along with the model. It seems like a waste of plastic and extra building time. But I don't know how to remove them, or what those things are even called. It'd also be nice to know what they actually are and what purpose they serve. I know they're not a raft or supports.

I circled the "panels" I'm referring to.

I appreciate the help.