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heart wood differs from sapwood in...

heart wood differs from sapwood in

A

Being susceptible to pests and pathogens

B

Presence of rays and fibres

C

Absence of vessels and parenchyma

D

Having dead and non-conducting elements

Text Solution

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The correct Answer is:
D
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MOTION-ANATOMY OF FLOWERING PLANTS-Excercise - 3 AIPMT & NEET Previous Year Questions
  1. Which one of the following is not a lateral meristem

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  2. The chief water conducting elements of xylem in gymnosperms are

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  3. heart wood differs from sapwood in

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  4. Transport of food material in higher plants takes place through

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  5. Ground tissue includes

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  6. The cork cambium, cork and secondary cortex are collectively called

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  7. Function of companion cells is

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  8. Some vascular bundles are described as open because these

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  9. Gymnosperms are also called soft wood spermatophytes because they lack

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  10. Water containing cavities in vascular bundles are found in

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  11. Closed vascular bundles lack

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  12. Companion cells are closely associated with :

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  13. The cambium which produces cork is known as Or The common bottle c...

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  14. Interfascicular cambium develops from the cells of

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  15. Tracheids differ from other tracheary elements in

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  16. The best method to determine the age of tree is

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  17. You are given a fairly old piece of dicot stem and a dicot root. Which...

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  18. A column of water within xylem vesels of tall trees does not break und...

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  19. Read the different components from (A) to (D) in the list given below ...

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  20. Specialised epidermal cells surrounding the guard cells are called

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