Which of the following is not an example of a mutualism?
A) fungi residing in plant roots, such as endomycorrhizae
B) rancher ants that protect aphids in exchange for sugar- rich honeydew
C) birds eating insects jumping out of the path of army ants
D) bacteria fixing nitrogen in plants

Question

Quizplus · Accepted Answer

This is an example of commensalism, where the birds benefit from the insects disturbed by the army ants, but the ants are not affected by the birds' presence. All the other options are examples of mutualism, where both species involved benefit from the interaction.

Which of the Following Is Not an Example of a Mutualism