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Describe the experience of a first panic attack. How common is it to mistake the first panic attack with a heart attack?
Vascular Cambium
Vascular cambium is a layer of tissue in plants that produces new phloem and xylem cells, contributing to stem and root thickness.
Xylem Arms
Specialized structures in plants that transport water and nutrients from the roots to other parts of the plant; although "arms" is not a standard term in botany, it metaphorically suggests the branching nature of xylem vessels.
Pericycle
A layer of cells found in plant roots, between the endodermis and the phloem, capable of initiating lateral root growth.
Root Hairs
Thin, hair-like extensions from root cells that increase surface area for water and nutrient absorption from the soil.
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