Any animal that breathes has a respiratory organ
the type of respiratory organ mollusks have is GILLS.
the primary respiratory organ for cockroach is trachea
Compared to what? It is the only respiratory organ in humans.
lungs is respiratory organ of cow
No, it's in the ear.
The lungs
All sponges don't have respiratory organs. Instead, individual sponges breath for the sponge.
The Lungs.
The lungs are the main organ of the respiratory system, but they are also an organ in the circulatory system.
The respiratory system.
no they are to small to have a respiratory system or organ so they breath through there cell membrane