Question

read the passage. then answer the question.
pseudoscorpions are small arachnids that often crawl onto the backs of large beetles, such as harlequin beetles.
when a beetle with a pseudoscorpion on its back flies away, the pseudoscorpion rides along. this ride helps the pseudoscorpion disperse, or move to a new location, much faster and farther than it could on its own.
when the pseudoscorpion is carried along, it does not harm the beetle, but it does not help the beetle, either.
which type of relationship is formed when a pseudoscorpion is dispersed by a harlequin beetle?
commensal mutualistic parasitic

Explanation:

In a commensal relationship, one organism benefits while the other is neither helped nor harmed. Here, the pseudoscorpion benefits (gets dispersed) and the beetle is neither harmed nor helped. In a mutualistic relationship, both would benefit. In a parasitic relationship, one would harm the other.

Answer:

commensal