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
feet and mouth
open circleitory system
Anyone can .. go to Macy's in Philadelphia (PA) and hear the Wanamaker organ.
The reproductive system of insects usually is tailored for internal fertilization. Insects have an ovipositor and an organ for depositing semen.
An aedeagus is a copulatory organ of some male insects.