Blood flowing through lung tissue absorbs oxygen from the lungs and releases carbon dioxide to the lungs. Which explanation describes how this exchange occurs? :Blood flowing to the lungs contains a higher concentration of carbon dioxide and a lower concentration of oxygen than the air in the lungs.
:Blood flowing to the lungs contains a lower concentration of carbon dioxide and a lower concentration of oxygen than the air in the lungs,
• Blood flowing to the lungs contains a lower concentration of carbon dioxide and a higher concentration of oxygen than the air in the lungs.
:Blood flowing to the lungs contains a higher concentration of carbon dioxide and a higher concentration of oxygen than the air in the lungs,