Question

A mite is a tiny organism that may ride on top of an insect, such as a beetle, in order to move quickly from place to place.

The relationship between the mite and the beetle would be an example of commensalism if
A.
the mite protects the beetle from predators.
B.
the beetle is unable to catch prey because it is slowed down by the mite.
C.
the beetle eats the mite.
D.
the beetle is neither harmed nor helped by the mite.

Answer 1

D. In commensalism one species benefits while the other is neither helped nor harmed — the mite gains transportation and the beetle is unaffected.