Marine Worm
Polychaetes range in length from 0.04 millimetres up to 6 metres and belong to the annelid group - worms whose bodies are divided into segments that stretch and contract.
Unlike most worms polychaetes are hairy and there name had come from ancient Greek words poly (meaning many) and the word chaeta means hair or bristles. Polychaetes bristles may be shaped like hooks, oars, or even stinging harpoons.
The front end of a polychaete has many sense organs,including, eyes ,tentacles, and palps. palps are probing structures, which are used to find and handle food .
A polychaetes mouthparts are often tucked away inside its throat.
