Answer: the beetle is neither harmed nor helped by the mite.
Explanation:In this case, the mite benefits because it gains transportation from the beetle. If the beetle is neither harmed nor helped by the mite, then the relationship between the mite and the beetle would be an example of commercialism.
I think the answer would be soot appears on a fireplace after a fire. I hope this helps you out! Good luck!
<span>Invertebrates means having no backbone.</span>