Unformatted text preview: The root apical meristem is protected by the root cap. Primary root growth occurs at the root apical meristem. 4. Two differences between these organs include: a. The corn root has one vascular cylinder of xylem and phloem that surround a central pith whereas the corn stem has many vascular bundles of xylem and phloem spread throughout it....
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- Fall '10
- Biology, phloem, Plant anatomy, Matt Schmasow