differentiate between protoxylem and metaxylem .

Explanation

Protoxylem
1)First formed partb ofnxylem in the vascular bundles.
2)Matures before the plant organs have completed their elongation.
3)In the stem protoxylem is arranged towards the centre.

Metaxylem
1)Metaxylem is the xylem part formed after the protoxylem.
2)matures after the completion of growth of the plant.
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