Statement –I :Vessels are made up of row of cells placed one above another with their intervening walls (septa) absent due to dissolution.
Statement –II :Sieve tubes are tubular channels. In tracheids walls are thick.

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Statement I is true, Statement II is true

Statement I is false, Statement II is false

Statement I is true, Statement II is false

Statement I is false, Statement II is true

answer is D.

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Detailed Solution

Xylem vessels are tube like bodies ideally suited for the conduction of water and solutes. A tracea or vessel is formed from a row of cylindrical cells arranged in longitudinal series where the partition walls become perforated, so that the a row of cells serves like a tube. Perforations are commonly confined to the end wall, but they may occur even on the later walls.

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