Yes they do.
White
Lungs
White
the red blood cells
1. To bring oxygen to cells around the body 2. To bring carbon dioxide from cells to our lungs to be exhaled
Yes, in a way. They take out the carbon dioxide from the blood and put the oxygen back in the blood. The sole purpose of the blood is to get oxygen from the lungs and bring it to other body parts and take the carbon dioxide back to the lungs.
Yes, the systemic circulation brings carbon dioxide-filled blood from the body's tissues to the lungs through the pulmonary circulation for gas exchange. Oxygen is taken up in the lungs, and carbon dioxide is released before the oxygen-rich blood returns to the heart to be pumped back out to the body.
we breath in oxygen, exhale carbon dioxide, plants bring in carbon dioxide, and let out oxygen. it's a cycle.
Red blood cells transport oxygen to cells and remove carbon dioxide from the body as they circulate through the bloodstream. Their characteristic red color comes from the iron-containing protein called hemoglobin, which binds to oxygen and carries it to tissues.
Your lungs, as part of the respiratory system, bring oxygen into your body. Nothing removes carbon dioxide though, it's never in your body per se, the oxygen in your blood cells just gets used when your cells travel through your body, then they go to the lungs which in effect just "recharge" them with oxygen again.
lungs
respiratory