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How is the due date for a pregnancy typically calculated?
Vascular Cylinder
Of a plant root, central column that consists of vascular tissue, pericycle, and supporting cells.
Endodermal Cells
Cells originating from the innermost layer of the embryo, which give rise to the lining of the digestive and respiratory systems.
Casparian Strip
A band of cell wall material found in the roots of plants, acting as a barrier to the passive flow of substances.
Xylem
The vascular tissue in plants that conducts water and dissolved nutrients upward from the root and also helps to form the woody element in the stem.
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