In wetlands, Beggiatoa oxidize H₂S for energy. Removal of H₂S enables growth of other microbes for which H₂S is toxic. However, Beggiatoa derives no benefit from these microbes. This interaction is an example of
A) syntrophy.
B) mutualism.
C) commensalism.
D) amensalism.
E) synergism.

Question

Quizplus · Accepted Answer

This interaction is an example of commensalism because the other microbes benefit (as H₂S is toxic to them) from the Beggiatoa oxidizing H₂S but the Beggiatoa does not benefit from the other microbes.

In Wetlands, Beggiatoa Oxidize H₂S for Energy