Which of the following stages in the process of respiratory gas exchange occurs by diffusion?

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    the movement of respiratory gases across the respiratory surfaces of the lung
    the movement of respiratory gases between the tissues of the body and the circulatory system
    the movement of atmospheric gas into and out of the lungs
    the movement of respiratory gases within the blood of the circulatory system
    Both the first and second answers are correct.
    Both the third and fourth answers are correct.

asked May 30, 2013 in Biology by anonymous
    

1 Answer

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Both the first and second answers are correct.
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)



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