if the tube is radial too
You can use a radial tube in a bias ply tire BUT you can not use a bias tube in a radial tire. The sidewall flex of a radial tire is greater than that of a bias ply. A bias tube cannot flex as rapidly as a radial tube and so the resulting friction or rubbing create too much heat and the tire/tube combination will blow.
Radial tires came about in the '70's, and have an interior tube, as opposed to the older tires, which were solid rubber.
The radial canals carry water to the ampullae and provide suction to the tube feet.
Radial symmetry and tube feet are not organism or animals , hence they don't live in water , these are character or structures found in Echinodrm animals which are marine animals .
According to Dunlop's site, "With a tube inserted, a tubeless tire may be fitted to a tube-type wheel." They offer one warning though: "Do not fit tubes in radial motorcycle tires, nor fit radials on rims requiring tubes, unless the tubes bear matching size and radial (R) markings." http://www.dunlopmotorcycle.com/infocenter_tiretips.asp?id=20#tip So, as long as the tube is marked for radial use, you shouldn't have any problems running a tubeless radial tire with it. The same SHOULD apply to Bias ply tired, but I can no confirm that.
Yes, but you should balance it.
"radial" has to do with how the reinforcing fabric is added to a tire. And since there isn't any reinforcing fabric added to tubes(they have to be able to expand) there's no such thing as a "radial" tube. But if you're asking about if tubes can be used in supposedly tubeless tires - then the answer is yes. It's an old trick to deal with leaky rims.
Sea urchins!
That would be a TWT amplifier (traveling wave tube).
tube feet
linear