They use them to clean
Yes, most annelids have external bristles called setae. Animals like earthworms use them to help them move.
Bristles were often made out of the bristles of boar before plastic bristles were invented. They might have also made them out of types of plant.
Bristles is what they are called
All bristles are safe,
The Latin word for bristles is setis.
Sock it in normal/tap water for 7/8 hours or Keep the bristles under the hot water until they soften. Use your fingers to test the softness by gently rubbing them along the bristles. Once they feel soft to your touch, you can brush your teeth.
The saddle does have bristles underneath as well as on the rest of the body. The bristles help the worm to move from place to place.
Most artificial bristles are made of nylon or plastic.
it has bristles to prevent it from skidding it is also used as brake in them.
to protect themselves
No