Which of the following tissues originates from the vascular ray initials?

  • A
    Tracheids and vessels
  • B
    Sieve tubes and companion cells
  • C
    Xylem and phloem fibers
  • D
    Radial rows of parenchyma cells

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How does sapwood transform into heartwood?

The amount of secondary xylem produced is $8-10$ times more than that of secondary phloem every year. Choose the correct option.

Lenticels are found in

Periderm is made up of

Match List-$I$ with List-$II$:
List-$I$ List-$II$
$(a)$ Lenticels $(i)$ Phellogen
$(b)$ Cork cambium $(ii)$ Suberin deposition
$(c)$ Secondary cortex $(iii)$ Gaseous exchange
$(d)$ Cork $(iv)$ Phelloderm

Choose the correct answer from the options given below:

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