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

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 mutualism.

Explanation:

Mutualism encompasses the ecological relationships between individuals of different species, in which both gets benefits and improve their biological functions. It usually occurs between species that have different nutritional and living requirements.

An example of this is also the nitrogen fixing bacteria (Rhizobia) and the legimunous plants, and the relationship between the Acacia and the Acacia ants.

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.