I want to know the answer to the following question:
What are the nuchal organs thought to do?
All the background I'm provided with is that "A few polychaete genera have on the undersides of their heads palps that are used both in feeding and as "feelers", and some of these also have antennae that are structurally similar but probably are used mainly as "feelers".". Is that enough to answer the question?
Answer: no