What do you mean by a closed vascular bundle?(a)Presence of cambium(b)Absence of cambium(c)Presence of periderm(d)None of these
(b) Absence of cambium
A closed vascular bundle refers to a type of vascular bundle found in plants where the cambium, which is a layer of actively dividing cells responsible for secondary growth, is absent. Closed vascular bundles do not exhibit secondary growth, meaning they do not increase in girth over time. As a result, these bundles are unable to produce new layers of xylem and phloem, which are responsible for transporting water, nutrients, and food throughout the plant.
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