You are given a fairly old piece of dicot ste | vedclass

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(C) To distinguish between an old dicot stem and an old dicot root,the position of the $Protoxylem$ is the most reliable anatomical feature.In dicot s

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Protoxylem

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(C) To distinguish between an old dicot stem and an old dicot root,the position of the $Protoxylem$ is the most reliable anatomical feature.In dicot stems,the $Protoxylem$ is situated towards the center (endarch condition).In dicot roots,the $Protoxylem$ is situated towards the periphery (exarch condition).Even in older specimens where secondary growth has occurred,the primary xylem remains at its original position,allowing for clear identification.

You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two?

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