Which one of the following is essential for blood clotting?



C. Blood platelets

D. Lymph

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  3. Which among the following is a communicable disease?
  4. One of the sequences given below represents a complete metamorphosis. Which one is it?
  5. The hormone that contains iodine is
  6. The blood clotting requires the vitamin
  7. Eye is an organ that can be called as
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  11. Biological control is to check growth of
  12. The disease in which blood clotting does not take place is known as
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  14. Baldness is seen only in the males because
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  16. Ecology of a population is known as
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  18. The country where commercial production of cultured pearls is undertaken on large scale is
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  21. Green plants In the sea are useful for respiration of flash because they
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  25. DNA is found
  26. Sleeping sickness in man is caused by the organism
  27. Louis Pasteur developed the vaccine for ______ for the first time.
  28. Which of the following diseases is not caused by a virus?
  29. Kwashiorkor' is caused by deficiency of
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