The lungs.
The trachea is the airway in the respiratory system.
The lungs are part of the respiratory and excretory systems.
The trachea and esophagus are parts of two organ systems, the respiratory and gastrointestinal, respectively.
None.
Any animal that breathes has a respiratory organ
the medulla oblongata
Compared to what? It is the only respiratory organ in humans.
the primary respiratory organ for cockroach is trachea
the type of respiratory organ mollusks have is GILLS.
The respiratory center is located in the medulla oblongata, which is the lowest part of the brain stem.
lungs is respiratory organ of cow
intestines: Digestive system lungs: Respiratory system