What advantage do termites have in processing wood?

Termites possess a unique advantage in processing wood due to the symbiotic bacteria and protozoa that reside in their gut. These microorganisms are essential for digesting cellulose, which is the primary component of wood. Cellulose is a complex carbohydrate that most organisms cannot break down efficiently. The relationship between termites and these symbiotic microorganisms allows them to convert cellulose into simpler sugars that can be utilized as an energy source. This specialized digestive capability enables termites to efficiently break down wood materials, which is critical for their survival and ecological role in recycling nutrients back into the ecosystem.

The other options do not accurately represent significant advantages in wood processing. For example, flying long distances may aid in finding new sources of food or establishing colonies but does not directly contribute to their ability to digest wood. Excreting varnish-like substances is not related to wood processing, and while large mandibles can help cut wood, they provide less advantage in the actual digestion of cellulose compared to the digestive processes facilitated by their gut microorganisms.