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Xylem Inc. Xylem Inc. is a large American water technology provider, in public utility, residential, commercial, agricultural and industrial settings. The company does business in more than 150 countries. Launched in 2011 as the spinoff of the water-related businesses of ITT Corporation, Xylem is headquartered in Washington, DC, with 2018 ...
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The most distinctive xylem cells are the long tracheary elements that transport water. Tracheids and vessel elements are distinguished by their shape; vessel elements are shorter, and are connected together into long tubes that are called vessels. [6] Xylem also contains two other type of cells: parenchyma and fibers.
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Gretchen W. McClain is an American business executive. [1] [2] [3] She currently serves on the board of directors for Booz Allen Hamilton and Ametek. [4]She served as the president and chief executive officer of Xylem Inc. (NYSE: XYL), and as the former chief director of the International Space Station and Deputy Associate Administrator of Human Space Exploration at NASA.
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The ascent of sap in the xylem tissue of plants is the upward movement of water and minerals from the root to the aerial parts of the plant. The conducting cells in xylem are typically non-living and include, in various groups of plants, vessel members and tracheids. Both of these cell types have thick, lignified secondary cell walls and are ...