The main purpose of our respiratory process is to supply the lungs and the blood and tissues with adequate oxygen, and to eliminate that carbon dioxide that is generated by the metabolism of the body tissues.
(The main purpose of our respiratory process; is; to supply the lungs and the blood and tissues with adequate oxygen, and to eliminate that carbon dioxide) (that carbon dioxide; is generated; by the metabolism of the body tissues)
The main purpose of our respiratory process that carbon dioxide
is is generated
to supply the lungs and the blood and tissues with adequate oxygen, and to eliminate that carbon dioxide
by the metabolism of the body tissues