Plant diseases are spread by

A. insects

B. man

C. wind

D. All the above

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  1. The first person to observe the bacteria, protozoa and spermatozoa under the microscope was
  2. The valve between the right auricle and right ventricle is called
  3. Late Blight' is a disease that affects the _______ crop.
  4. The endocrine glands secrete
  5. Aphids are
  6. A few infections like sore throat, whooping cough and tuberculosis are carried through the respiratory…
  7. Haemoglobin is dissolved in the plasma of
  8. The tear glands help us in
  9. The theory that believes that the first living organism came from another planet is known as
  10. An organism eating its own species is called
  11. Dialysis is used when there is a failure of
  12. The suggestion that the chromosomes are the carriers of hereditary material was first made by
  13. Modern classification of the living world recognise ___________ kingdoms.
  14. Malaria is transmitted from one person to another by
  15. Kwashiorkar is a deficiency disease
  16. Desert plants are called
  17. The thermoregulatory centre in the human brain is the
  18. Which one of the following is caused by the expression of a recessive gene present on sex chromosome?
  19. Best growth of plants is attained if they are supplied with
  20. Turner's syndrome is a disease caused by
  21. The rate of growth of plants can be measured by a/an
  22. Pearl is secreted by the __________ of the pearl oyster.
  23. Spontaneous generation signifying the development of living organisms from non-living has been termed
  24. The buffer substance in blood is
  25. What ia leukaemia?
  26. Which one of the following is viral disease?
  27. Who coined the term gene?
  28. The 'father of genetics' is
  29. Afforestation means
  30. Mendel chose for his experiments the plant