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Valve a are present inside

A. Arteries

B. Capillaries

C. Veins

D. Lymph vessels

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. Xerophthalmia is a deficiency disease. Deficiency of _________ causes it.
  2. Higher plants take up nitrogen as
  3. The corn in an underground stem that grows
  4. The latest drug for cancer is obtained from
  5. Pneumonia is ,a bacterial disease caused by the type of bacteria called
  6. Which among the following is a communicable disease?
  7. The gestation period for the elephant is
  8. Which among the following is a balanced fertiliser for plants?
  9. Temperature treatment which shortens the vegetative period and hastens the flowering is called
  10. Late Blight' is a disease that affects the _______ crop.
  11. Deciduous forests are those with trees
  12. Darwinism does not explain
  13. A biopsy is performed on a patient generally to detect which one of the following?
  14. An inherited characteristic which does not appear in one generation but can appear in the next is called
  15. It Is not advisable to sleep under a tree at night because of release of
  16. Phonoreceptor refers to the perception of
  17. The endocrine glands secrete
  18. What are oncogenes?
  19. The blood clotting requires the vitamin
  20. The layer of stagnant water in which light penetrates is called
  21. Sleeping sickness in man is caused by the organism
  22. The metallic part in haemoglobin is
  23. Maintenance of pregency is under the control of
  24. Rh+ blood is due to genes which are
  25. The workers in the honey bee colony are
  26. Which among the following animals has the largest Intestine?
  27. The part of the human brain concerned with sight is the
  28. Whooping cough is caused by
  29. The juice from the leaves of ________ is used for the treatment of diarrhoea, cholera and dysentery.
  30. Diseases in plants can be caused by