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Biology: The Unity and Diversity o...
Biology: The Unity and Diversity o...
Was the section in the micrograph shown at right taken from a stem or a root? Monocot or eudicot? How can you tell?
To determine: Whether the micrograph shown in the question is a stem or a root that belongs to eudicot or monocot.
Concept introduction: The plants whose seeds contain two cotyledons or embryonic leaves are known as dicotyledons or simply dicot. Well-defined epidermis with cuticle and multicellular stem hairs is a characteristic of the eudicot stem. In the eudicot stem, the endodermis is distinct as the innermost layer of the cortex.
The micrograph shown in the question is a eudicot stem. The vascular bundles seen in the picture are set in a characteristic ring. If it was a monocot stem, the vascular bundles will be scattered all over the stem. The micrograph is not taken from the dicot root...
Chapter 27 Solutions
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