the alveoli
Any animal that breathes has a respiratory organ
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.
I say that if your doing the human... Human Body, Organ System (Digestive,Immune,Respiratory, etc.) Then the Organ (Of which system you picked), then the Tissue, Cell, DNA, Chromosome, Genes, Finally Allele.
lungs is respiratory organ of cow
The lungs
No, it's in the ear.
You wouldn't be here if it weren't for cells, simply because cells are the the smallest unit that makes everything up! Cells can form and organ and an organ can form a system (e.g. Respiratory system).
The lungs are the main organ of the respiratory system, but they are also an organ in the circulatory system.
The Lungs.
no they are to small to have a respiratory system or organ so they breath through there cell membrane