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    State three advantages of the thickening spiral arrangement of the xylem vessels rather than a continuous thickening arrangement.

    Does anyone know how?
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    (Original post by dp00)
    State three advantages of the thickening spiral arrangement of the xylem vessels rather than a continuous thickening arrangement.

    Does anyone know how?
    Maybe..
    - Spiral arrangement allows movement and flexibility of vessel - continuous thickening would make vessel more rigid
    - Spiraling also ensures water can leave the xylem via the boarded pits - if continuous this would prevent water leaving the xylem vessel as would block pits.

    Not sure what a third advantage would be though!
 
 
 
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