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Q.
Vessels are found in
Rajasthan PMTRajasthan PMT 2007
Solution:
Most angiosperms have vessels except a few (eg, Drimys, Tetracentron, Trochodendron). The gymnosperms, as a rule, lack vessels but these are found in the order Gnetales. Vessels are the constituent of xylem complex tissue. They are composed of row of cells placed one above to other. Transverse wall of these cells is absent due to dissolution.