OPM Termite Practice Exam

To reach dry wood, what must subterranean termites use?

1. Feces for insulation

2. Shelter tubes that bridge over

3. Natural wood pathways

4. Holes in the ground

The correct answer is: Shelter tubes that bridge over

Subterranean termites rely on shelter tubes to access dry wood, which is essential for their survival and feeding habits. These tubes are constructed from soil, wood particles, and saliva, providing a protected environment that shields the termites from predators and environmental threats. By building these tubes, subterranean termites can travel from their underground nests to above-ground wood sources, effectively bridging the gap to areas that are otherwise inaccessible to them. The tubes allow these termites to maintain moisture levels necessary for their survival while exploring wood that is elevated or separated from their natural habitat in the soil. This unique adaptation is crucial because dry wood is typically above ground level and requires a means to reach it without exposing themselves to danger or desiccation. In contrast, other options do not accurately reflect the behavior of subterranean termites. They do not primarily use feces for insulation or natural wood pathways, as these would not provide the necessary protection from the elements. Additionally, while they may create holes in the earth, these would not effectively facilitate the movement needed to reach upper structures where dry wood typically resides. Thus, shelter tubes are the definitive method for subterranean termites to access and exploit dry wood sources efficiently.