Answers

2015-07-27T20:25:19+05:30
Tracheids are elongated cells in the xylem of vascular plants that serve in the transport of water and mineral salts..
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2015-07-28T07:36:19+05:30
Tracheids are long,tubular dead cells with wide lumen and tapering ends.The cell wall is thick with lignin.They have pores in their walls 
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