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The vessel elements of angiosperms differ from other elements of xylem in having

A. simple pits on their radial walls.

B. bordered pits on their lateral walls.

C. simple and bordered pits on their end walls.

D. simple perforation on their end walls.

Correct Answer : D.


Vessel is a long cylindrical tube-like structure made up of many cells called vessel-members, each with lignified walls and a large central cavity. Vessel members are interconnected through perforations in their common walls. The presence of vessels is a characteristic feature of angiosperms.

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