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older resin-clogged central seconedary x...

older resin-clogged central seconedary xylem and younger outer secondary xylem are respectively known as

A

Alburnum amd duramen

B

Duramen and alburnum

C

Heart wood and sap wood

D

Both B andC

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Verified by Experts

The correct Answer is:
D
Older central secondary xylem and younger outer secondary xylem are respecitively known as duramen/heart wood and alburnum / sap wood.
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A2Z-ANATOMY OF FLOWERING PLANTS-Section A : Topicwise Questions Topic 6 : Secondary Growth (vascular Cambium , Cork Cambium And Seco
  1. Match the columns I II and III and choose the correct combination from...

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  2. The climatic conditons are not uniform through the year in

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  3. Recognise the figure and find out the correct matiching

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  4. Cambium is a lateral meristem that takes part in

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  5. Fill in the blanks: In older trees , the greater part of …a…. Is dar...

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  6. cellular layers form outside to inside in old dicot stem are

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  7. The peripheral region of the secondary xylem is lighter in colour and ...

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  8. older resin-clogged central seconedary xylem and younger outer seconda...

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  9. Recognise the figure and find out the correct matiching

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  10. Read the following statements and find out the incorrect statement

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  11. vascular cambium of stem is

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  12. Which of the following statement is / are not true A. Cork cambium i...

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  13. Recognise the figure and find oput the correct matching

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  14. Cambium ring in dicot stem consist of

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  15. meristem present in a vascular bundle is

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  16. Which meristem helps in increasing girth?

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  17. Among the following , secondary growth is seen in a-dicot root, b-dico...

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  18. Cork/bottle cork is formed from

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  19. Recognise the figure and find out the correct matching

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  20. In dicot root showing secondary growth, cork is found

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