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The breathing and respiration in woody s...

The breathing and respiration in woody stem of a plant takes place through:

A

root hair

B

lenticels

C

closed stomata

D

open stomata

Text Solution

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The correct Answer is:
B
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LAKHMIR SINGH & MANJIT KAUR-LIFE PROCESSES-Exercise
  1. One of the following animals does not use tracheae as the respiratory ...

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  2. The pholosynthesis in a plant is not taking place during the day time ...

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  3. The breathing and respiration in woody stem of a plant takes place thr...

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  4. One of the following organisms does not depend on simple diffusion of ...

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  5. During marathon, we somethimes get painful contractions of leg muscles...

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  6. In cockroaches, air enters the body through:

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  7. A, B and C are three living organisms. The organism A is a unicellulla...

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  8. There are five animals P, Q, R, S and T. The animal P always lives in ...

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  9. Some sugar solution is taken in a test-tube and a little of substance ...

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  10. Consider the following chemical reactions which take place in differen...

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  11. When a person breathers in air, the air enters into his body through a...

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  12. An organism X having breathing organs A lives on land. When organism X...

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  13. Name the complex tissue which helps in : (a) Conduction of water and...

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  14. What substance/substances are transported in plants by: (a) xylem ve...

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  15. Which organ acts as a pump in the circulatory system ?

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  16. Veins and arteries carry blood. Which of these carry blood: (a) away...

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  17. Where does the blood absorb oxygen in the human body ?

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  18. What stops blood from flowing backwards through the heart ?

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  19. Name (i) largest artery, and (ii) largest vein, in our body.

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  20. What gaseous waste products are excreted by plants ?

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