Cellulose-digesting microorganisms live in the guts of termites and ruminant mammals. The microorganisms have a home and food, and their hosts gain more nutrition from their meals. This relationship is an example of .a. commensalism b. predation c. parasitism d. herbivory e. mutualism

Mutualism

Explanation:

Ecological relationships exists between organisms of the same or different species in the ecosystem. This relationship might benefit others and be harmful to others. One of these relationships is MUTUALISM, which is the relationship where both organisms involved benefits from the action of one another i.e. both organisms are gaining.

In this case involving cellulose-digesting termite and ruminant animals, it is an example of MUTUALISM because the cellulose-digesting termite helps the ruminant animal digest cellulose in their guts, something which the animals cannot do on their own, and in return, the termites are provided with shelter and something to feed on. Hence, both the termite and the ruminant animal are benefitting from the relationship.