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Anatomy of Flowering Plants — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYAnatomy of Flowering Plants1 Mark
Question
Why is there a need to provide new protective cell layers in a dicot stem undergoing secondary growth?
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Answer

As the dicot stem continues to increase in girth (diameter) due to the activity of vascular cambium, the epidermis and the peripheral layers of cortex become broken; hence there is a need to provide new protective cell layers.

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