A) having casparian strips
B) being imperforate
C) lacking nucleus
D) being lignified
Correct Answer: B
Solution :
[b] Tracheids and vessels both are called tracheary elements because their main function is conduction of sap. They differ from each other in being inspertorate. Tracheids are the specific cells which have pits to support upwards and lateral conduction of water sap. Tracheid are comparatively short and single cell, while vessels have more than one cell and up to 10 cm long.
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