What is the approximate size range of an adult American cockroach?

The size range of an adult American cockroach falls between 1 3/8 to 2 1/8 inches. This size range is significant for pest control and identification purposes, as recognizing an organism's dimensions helps professionals determine the appropriate methods for control and management.

American cockroaches are among the larger species of cockroaches, which is why their size is a crucial factor in distinguishing them from other types. Understanding the specific measurements can aid technicians in identifying infestations accurately and providing effective treatment options. The other size ranges provided do not accurately reflect the adult size of American cockroaches, reinforcing why the selected range is the only correct choice.