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Why do Arthropods have open circulatory ...

Why do Arthropods have open circulatory system ?

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In Arthopods blood vessels are absent, sinuses are present. So they have open circulatory system.
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VGS PUBLICATION-BRILLIANT-TRANSPORTATION - THE CIRCULATORY SYSTEM-4 MARK QUESTIONS
  1. In which phylum, organisms have haemoglobin in their blood ?

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  2. In which phylum, digestive system helps in transportation ?

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  3. Why do Arthropods have open circulatory system ?

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  4. Total number of valves in human heart are

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  5. Ramu got injured while playing Kabaddi. His blood clotted within 6 min...

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  6. Read the para : Now, fill the table with the above information.

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  7. Write a short note on Human Lymphatic System and its functions.

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  8. Observe the given diagram. Which type of cardiac cycle does it indicat...

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  9. In human body "A" is a pumping organ. From lungs blood vessel "B" with...

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  10. What blood vessels are (i) B (ii) E (iii) F and (iv) I ? Write their n...

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  11. What chambers are (i) C (ii) D ?

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  12. What blood vessels are (i) B (ii) E (iii) F and (iv) I ? Write their n...

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  13. Write about the blood vessels that bring blood to human heart.

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  14. What is blood pressure ? How is it measured ?

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  15. What is the need of special tissues or organs for transport of substan...

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  16. Explain the process of transport of mineral salts.

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  17. Write about the changes in the evolution of transport system in animal...

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  18. How are water and minerals transported in plants ?

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  19. How is manufactured food in leaves transported to other parts of the p...

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  20. Explain the process of absorption of water by the root hair and moveme...

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