This system gets oxygen to the cells of the body and rids the body of waste gases. some organisms use their skin. this is also a cell-level process.

Respiratory system

Explanation:

The main function of the respiratory system is to allow the oxygen from atmosphere to enter the blood accompanied by release of carbon dioxide from blood into the air. It includes inhalation and exhalation.

Some organisms such as humans have complex respiratory systems and lungs are the main organs. Other organisms such as earthworms have moist skin with rich supply of blood vessels to serve the function of site of gaseous exchange.

where is the scientific experiment?

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.