Their squiggly-splooj.
the organ is the loin.
The organ used to hear is the ear.
not as such but they can hear.
No, not all of them
tongue
feet and mouth
open circleitory system
antenna
The reproductive system of insects usually is tailored for internal fertilization. Insects have an ovipositor and an organ for depositing semen.
Anyone can .. go to Macy's in Philadelphia (PA) and hear the Wanamaker organ.
insects
An aedeagus is a copulatory organ of some male insects.