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(a) How many types of blood vessels are ...

(a) How many types of blood vessels are there in the human body ? Name them
(b) Why does the heart need valves ?

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LAKHMIR SINGH & MANJIT KAUR-LIFE PROCESSES-Exercise
  1. Why do some people need to use a dialysis machine ? What does the mach...

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  2. What is the liquid part of the blood called ? What is the function of ...

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  3. (a) How many types of blood vessels are there in the human body ? Name...

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  4. A dialysis machine contains long tubes coilded in a tank containing di...

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  5. State the differences between artery, vein and capillary

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  6. (a) What are the upper parts of the heart called ? (b) What are the ...

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  7. (a) What are the methods used by plants to get rid of their waste prod...

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  8. (a) What is lymph ? State two major functions of lymph (b) What is m...

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  9. What is hypertension ? Why is it caused ? What harm can it do ?

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  10. With which human organ system (or human system) are the following asso...

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  11. What is meant by 'systolic pressure' and 'diastolic pressure' ? What a...

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  12. (a) What is mean tby 'heart beat' ? What is the usual heart beat rate ...

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  13. (a) What is blood ? Why is it red ? (b) State the functions of blood...

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  14. (a) What is meant by human circulatory system ? Name the organs of the...

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  15. Describe the working of human blood circulatory system with the help o...

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  16. (a) Name the red pigment which carries oxygen in the blood (b) Why i...

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  17. (a) What is lymphatic system ? What are its functions ? (b) What the...

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  18. (a) Name the various organs of the human excrtory system (b) Draw a ...

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  19. (a) Describe the mechainsm of urine formation in human excretory sytem...

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  20. (a) What is meant by dialysis ? What type of patients are put on dialy...

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