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Respiratory System. Several organs of the respiratory system are responsible for the process of breathing. The nose, pharynx, larynx, trachea, bronchi, and lungs work together to allow gas exchange to occur at the cellular level.
Gas exchange: Respiratory organs: - essentially a system that provides oxygen to the organism. Usually, the circulatory system (if present) then delivers this to the cells, but oxygen needs to be put into the circulatory system to begin with. Thus, respiratory organs have developed. - Many different kinds: - skin - gills - trachea - lungs