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The lungs
The Placenta
placenta
no they are to small to have a respiratory system or organ so they breath through there cell membrane
The lung
Type your answer here... the respiratory organ of amoeba is lungs
Any animal that breathes has a respiratory organ
You have the organ called as placenta. The foetus gets the oxygen and nutrition from the mother. The blood of the mother and foetus comes very close to each other in the placenta. Both are not mixed up. They are separated by very thin membrane. The surface area of the contact is very large as compared to the size of placenta.
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
Any body area that has an outlet to the out side is covered in a mucous membrane: respiratory tact. digestive tract, urinary tract, even the membrane that surrounds the orbit of the eye (eye ball).