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In a woody dicot stem twenty spring wood...

In a woody dicot stem twenty spring woods and twenty autumn woods are present. What is the approximate age of that tree

A

10 Years

B

40 Years

C

5 Years

D

20 Years

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-HISTOLOGY AND ANATOMY OF FLOWERING PLANTS-EXERCISE - I (SECONDARY GROWTH)
  1. The parenchymatous cells found in lenticel are

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  2. Which is the common part formed due to the activity of vascular cambiu...

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  3. In a woody dicot stem twenty spring woods and twenty autumn woods are ...

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  4. The study of estimation of age of the tree by counting the number of a...

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  5. Function of xylem ray parenchyma is

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  6. Number of annual rings from base to apex of stem of dicot during secon...

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  7. Cork is impervious to water due to the presence of

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  8. Each annual ring (growth ring) consists of

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  9. A tree grows at the rate of 0.5 m per year. What will be the height of...

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  10. A hundred year old tree of temperate area will show

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  11. In some old trees, though the central part (heart wood) is lost, the p...

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  12. The annual rings in a hundred year old tree will show

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  13. In a cut trunk of a tree, the section was showing 26 concentric rings ...

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  14. Highly durable and commercial valuable wood of the following is

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  15. Heart wood is durable and resistant to microbial attacks due to the de...

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  16. Select mismatch from the following

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  17. All of the following are component of bark except.

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  18. The secondary cambium develops partly from pericycle and partly form c...

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  19. Secondary growth commonly occurs in

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  20. The main role of vascular rays is

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