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How are vascular bundles arranged in a monocot stem seen in cross section?
AArranged in a single outer ring
BFused into one central cylinder
CScattered through the ground tissue
DPaired around the central pith
Answer & Solution
Correct answer: C. Scattered through the ground tissue
1. Vascular bundles run the length of the stem, and their layout separates the two flowering plant groups.
2. In dicot stems the bundles sit in a ring when the stem is cut across.
3. In monocot stems the bundles are randomly scattered throughout the ground tissue.
4. A single central cylinder describes the root stele rather than a monocot stem, so that option borrows from the wrong organ.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 30 "Plant Form and Physiology", section 30.2 Stems_
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