The system that involves the esophagus, lungs, etc. and makes it so you can breath.
the
lungs.....
Smoking and asbestos
It brings oxygen to the body.
between the nasal passages and the diaphragm
It takes in oxegen and takes off carbon dioxide
the cardoi does the workout.
It takes in oxegen and takes off carbon dioxide
the respirtory system is its own system.
A shark obtains oxygen from the water using its gills.
because they need to breath!
Give the body oxygen and remove carbon dioxide from the body by exhaling.