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    Hey everyone,

    I'm having trouble with this diffusion gap fill exercise that we have been given for homework... I've done all of it except this sentence! '

    To maintain a steep diffusion gradient for oxygen involves bringing oxygen to an exchange surface (v...............) and constantly removing it from the surface after it has diffused across it (c..............).

    I think the first gap might be 'very thin, but I have no clue on the second one! Anyone know what they are?


    Please help! Would appreciate it!
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    Villus/villi.
    Cell membrane
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    (Original post by Kyle03)
    Villus/villi.
    Cell membrane
    lol
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    Ventilation
    Circulation

    Do you agree AortaStudyMore, or am I also making you laugh?
 
 
 
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Updated: January 8, 2017
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