What structural connection is surprisingly common for linking exterior harborage to interior cockroach activity?
Answer
Poorly sealed utility lines where conduits enter the home
Utility lines—where water, gas, or electrical conduits enter the dwelling—often serve as direct, sheltered pathways connecting exterior harborage areas to interior spaces like basements or utility closets.

Related Questions
What is the scientific name for the American cockroach?What three primary factors determine where an American cockroach will reside?In regions experiencing freezing winters, what structures allow American cockroaches to persist year-round?Which of the following is listed as a preferred outdoor habitat for the American cockroach?How does the typical indoor habitat of an American cockroach differ from that of the German cockroach?What common name is often applied to the American cockroach in the southeastern United States?What mechanism often facilitates the introduction of *Periplaneta americana* into new, isolated geographic areas?What structural connection is surprisingly common for linking exterior harborage to interior cockroach activity?In subtropical climates, what is the primary outdoor role of the American cockroach before it enters a structure?What three specific factors are used in the localized risk assessment calculation for homeowners?