Question

How is O2 and co2 transported in human beings​

Answer 1

here is your answer

exchange of gases takes place between the alveoli of lungs and the surrounding blood cappillaries.The two main gases exchanged are oxygen and carbon-dioxide. Oxygen is absorbed by the blood capillaries from the lungs alveoli by diffusion while carbon-dioxide is absorbed by the lungs alveoli from blood capillaries by diffusion.

hope this will help u..

Answer 2

exchange of gases take place in human body. the two main gases oxygen and carbon dioxide O2 is absorbed and CO2 is released