Blood clotting requires vitamin

A. A

B. B

C. C

D. K

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  1. Which organism probably arrived first in the world?
  2. What are the symptoms of retinal deficiency?
  3. Tuberculosis is caused by
  4. Biologists have so far known, found and identified a large number of species in the plant and animal…
  5. Whale reproduces by
  6. The first sign of life made its appearance on the earth about
  7. Dwarf plants can be made to attain their normal stature by applying
  8. Leafy trees help in preventing
  9. Organisms that live in the deep sea are mainly
  10. Which among the following is a balanced fertiliser for plants?
  11. Warm-bloodedness
  12. 1 gm of carbohydrate gives energy which is about
  13. Which of the following terms is used in Botany?
  14. Saliva flows at the sight of food. This action is
  15. Small pox is caused by
  16. Blood plasma from which fibrinogen is removed is known as
  17. The involuntary muscles are controlled by the
  18. The white blood corpuscles the body because they are popularly called soldiers of
  19. Translocation of food takes place in plants through
  20. The suggestion that the chromosomes are the carriers of hereditary material was first made by
  21. Lamarck's theory of inheritance of acquired characters was challenged by
  22. Cancer cells are more easily damaged by radiation than normal cells because they are
  23. Who was the first scientist/doctor who attempted vaccination?
  24. Which one of the following was probably absent in the atmosphere at the time of origin of life?
  25. Which among the following animals has the largest Intestine?
  26. Tse-Tse fly is the vector for
  27. The aphotic zone means that light is
  28. Valves are present inside
  29. The natural defence of our body against foreign germs is formed by
  30. Late blight of potato is caused by