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प्रश्न
In a forest, if the bark of a tree is damaged by the horn of a deer, How will the plant overcome the damage?
उत्तर
When the bark is damaged, the phellogen forms a complete cylinder around the stem and it gives rise to ring barks.
संबंधित प्रश्न
Consider the following statements.
In spring season vascular cambium:
- is less active
- produces a large number of xylary elements
- forms vessels with wide cavities of these.
Usually, the monocotyledons do not increase their girth, because ______.
In the diagram of lenticel identify the parts marked as A, B, C, D.
The common bottle cork is a product of ______.
In which season the vessels of angiosperms are larger in size, why?
Continuous state of dividing tissue is called meristem. In connection to this, what is the role of lateral meristem?
A timber merchant bought 2 logs of wood from, a forest & named them A & B, The log A was 50 year old & B was 20 years old. Which log of wood will last longer for the merchant? Why?
A transverse section of the trunk of a tree shows concentric rings which are known as growth rings. How are these rings formed? What are the significance of these rings?
Inner, darker & harder portion of secondary xylem that cannot conduct water in an older dicot stem is called ____________.
