Tracheids of angiosperms are recognised by the presence of

  • A
    Bordered pits
  • B
    Scalariform thickening
  • C
    Scalariform perforation plates
  • D
    None of the above

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Assertion: In angiosperms,the conduction of water is more efficient because their xylem has vessels.
Reason: Conduction of water by vessel elements is an active process with energy supplied by xylem parenchyma rich in mitochondria.

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Which tissue provides mechanical support to the young stem and petiole of leaves?

Lignified cell wall is the characteristic feature of

Phloem tissue is

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