Palm is monocotyledonous plant yet it is increasing in girth

Explanation:-

• A palm tree is a monocotyledonous plant and, like all other monocots, the vascular bundles in the stems do not have a primary cambium.
• However, with age, the tree grows in diameter, although slowly, as a result of the growth of ground tissue.
• A secondary cambium may form in the hypodermal region of the stem. Later on, conjunctival tissue and patches of meristematic cells are formed.
• Secondary vascular bundles are formed as a result of the activity of meristematic cells.

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