The first person to observe the bacteria, protozoa and spermatozoa under the microscope was

A. Theodore Schwann

B. Matthias Schleidon

C. Robert Hooke

D. Leuwenhoek

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

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  1. The layer of stagnant water in which light penetrates is called
  2. Which of the following cell organelles play the most significant role in protein synthesis?
  3. The specific gravity of blood
  4. The genetic code DNA is carried from the nucleus to Ribosome by
  5. Late Blight' is a disease that affects the _______ crop.
  6. What is the other name for the brain?
  7. Which among the following is a Cast growing tree?
  8. Tse-Tse fly is the vector for
  9. It is possible to produce seedless tomato fruits by
  10. A person with a blood group ____ is considered to be an universal donor.
  11. Biological control is to check growth of
  12. Organisms that feed on the excreta of other organisms are called
  13. Small pox is caused by
  14. Whale reproduces by
  15. Which one of the following cells helps in storing water and food materials?
  16. Herbivores are
  17. Bats can fly in the dark because
  18. The pH of normal urine of man ranges from
  19. The artificial kidney is a
  20. Which one of the following is not an essential micronutrient for plants?
  21. The insects do not have blood pigments because
  22. The pathogenic organisms of an infected person are destroyed by the action of
  23. The geotropism of the roots that makes them grow towards gravity is said to be
  24. The part of the human brain concerned with sight is the
  25. The deficiency of Vitamin A which leads to poor vision during night is termed
  26. Biologists have so far known, found and identified a large number of species in the plant and animal…
  27. The specific gravity of blood is
  28. Which among the following is not a degenerative disease?
  29. Evergreen forests are confined to
  30. What is an antigen?