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Why are the artery walls very strong and...

Why are the artery walls very strong and elastic?

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VGS PUBLICATION-BRILLIANT-TRANSPORTATION-EXERCISE
  1. How many layers are convering the heart?

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  2. Which end of the heart is broader and which end is narrow?

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  3. Why are the artery walls very strong and elastic?

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  4. What is the function of Gestro vascular cavity?

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  5. Which animals are encouraged by foresters to keep down the population ...

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  6. Which animals do great damage particularly to beech and sycamore?

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  7. When do you think that our pulse rate goes up?

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  8. Sometimes barks of the tree are damaged more than a half, even though ...

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  9. Which of the four chambers of the human heart has the thickest muscula...

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  10. Sieve tube is a part of –

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  11. What factors contribute to rate of transpiration?

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  12. How does transpiration pull help in ascent of sap?

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  13. Mass flow deals with translocation of :

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  14. Sweating is mainly meant for

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  15. Which items do you take into consideration to explain the differences ...

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  16. When you know the heart pumping method in circulatory system, which is...

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  17. Classify different types of blood vessels in humans. On what bases do ...

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  18. Anil fell down while going to school, got knee injury, started bleedin...

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  19. Describe the blood vessels that carry away blood from human heart?

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  20. How is the human heart protected from shocks or injuries?

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