Asian roaches differ from German roaches in that:

• A. Asian roaches are more resistant to pesticides
• B. Asian roaches are attracted to light
• C. German roaches are nocturnal
• D. Asian roaches are larger

Answer: (B)

Understanding how roaches respond to light helps distinguish these two species. Asian roaches show a stronger attraction to light, so you’re more likely to see them around illuminated areas, windows, or outdoor lights. German roaches, on the other hand, prefer dark, hidden spots and tend to stay out of light. This difference in phototaxis makes light-trace observations a practical clue for telling them apart. The other statements aren’t reliable distinguishing traits: pesticide resistance can vary by population, both types can be active at night, and their sizes are similar, so those factors aren’t dependable for identification.