Jeremy is observing a cross-section of a corn stem under the microscope. he observes that there is no vascular cambium present in this stem. why is there no vascular cambium in corn stems?

Vascular cambium is a the tissue which is present in between the xylem and phloem. Te cells of vascular cambium divide to form secondary vascular structure, which is not a feature of the monocots like corn. Secondary vascular structures are true to dicots and do not carry water or minerals, rather increase thickness of the plant.

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