Trees in desert regions .......

  • A
    Show alternating rings of xylem and sclerenchyma.
  • B
    Show distinct annual rings.
  • C
    Do not show distinct annual rings.
  • D
    Contain phloem as connective tissue derived only from cambial activity.

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Which of the following represents the correct sequence of layers from the center towards the periphery in a dicot stem?

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The $phellogen$ (cork cambium) develops from $...................$.

Girth of a dicot stem is increased by

Lenticels are found in

Identify the meristems responsible for primary growth and secondary growth from the following list:
$I -$ Cork cambium,$II -$ Apical meristem,$III -$ Vascular cambium,$IV -$ Intercalary meristem,$V -$ Lateral meristem
Choose the correct option for primary growth and secondary growth respectively.

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