In a plant organ which is covered by periderm and in which the stomata are absent,some gaseous exchange still takes place through

  • A
    Aerenchyma
  • B
    Trichomes
  • C
    Pneumatophores
  • D
    Lenticels

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Similar Questions

One cannot age a tree by its rings if that tree is located in which of the following forests?

Which of the following meristems is responsible for the formation of the extra-stelar secondary growth in a dicot stem?

The common bottle cork is a product of

$A$ : The oldest layer of sapwood lies just outside the vascular cambium.
$R$ : Sapwood contains actively conducting vessels and occupies the central part of the stem.

In a typical dicot stem,the cork cambium $(phellogen)$ develops from:

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