Gas exchange requires a surface that is both ______. O thin and moist O protected within the body and connected to the circulatory system O ciliated and flagellated O permeable to oxygen and impermeable to carbon dioxide O permeable to oxygen and avascular
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Marlyn J.
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Nicholas M.
Two processes that are responsible for the movement of oxygen from the alveoli into the bloodstream are diffusion and facilitated diffusion. osmosis and diffusion. osmosis and facilitated diffusion. diffusion and active transport. Question 33 (1 point) The two main requirements for external respiration are a large surface area for gas exchange; a moist environment to dissolve oxygen and carbon dioxide. large surface area for gas exchange; a dry environment to dissolve oxygen and carbon dioxide. small surface area for gas exchange; a moist environment to dissolve oxygen and carbon dioxide. small surface area for gas exchange; a dry environment to dissolve oxygen and carbon dioxide.
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