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Because that is where the primary gas exchange happens.
Any animal that breathes has a respiratory organ
the type of respiratory organ mollusks have is GILLS.
Compared to what? It is the only respiratory organ in humans.
the primary respiratory organ for cockroach is trachea
lungs is respiratory organ of cow
No, it's in the ear.
The lungs
The Lungs.
The respiratory system.
The lungs are the main organ of the respiratory system, but they are also an organ in the circulatory system.
flagella is a locomotary organ for some micro-organisms,if flagella is not present there is no locomotion hence can be attacked by any organism and can be destroyed