100 Biology Info Questions Practice Quiz Online Mcq’s Test with Answers

1. There are three components for the control system in a living organism to maintain homeostatic balance which are receptors, control centre and:

2. Actual place or location where an organism lives is called its:

3. Dark reaction is also called as:

4. The oldest known fossils are:

5. The animal excreting urea as the nitrogenous waste are called as:

6. The nucleoside forms a nucleotide after combining with a:

7. The elimination of wasteful metabolites mainly of nitrogenous nature is called as:

8. What is the number of insects in percentage among known species of organisms:

9. Nucleohistones are present in:

10. The five kingdom system of classification was proposed by:

11. Nearly 70% of the total global carbon is found in:

12. There is a need for lead free petrol to reduce the:

13. Science is a systematized knowledge and based on:

14. Soyabeans have been made resistant to a common:

15. The cell theory was formulated by:

16. Biology is the study of:

17. The crossing of different varieties of plants or even species is called:

18. The transfer of energy from one trophic level to another is called as:

19. Retroviruses cause the disease:

20. Currently, the number of species of organisms, known to science is:

21. The list of plants and animals which if not protected would soon be extinct is known as:

22. Homeostasis is the central requirement in the maintenance of:

23. The first step of aerobic respiration is:

24. A pollutant which causes mental illness is:

25. Kingdom Animalia includes all animals which are:

26. The means by which recombinant DNA is introduced in a host cell is called:

27. Most fossils are found in:

28. Which is the best source of renewable energy?

29. There is a need for lead free petrol to reduce the:

30. In Ecuador, factor coverage has been reduced by:

31. A branch of Biology, which deals with the study of chemical components  and chemical process in living organisms is known as:

32. Species is the basic unit of:

33. The main cause of extinction of species include:

34. The prokaryotic cell can divided by:

35. Photosynthetically, least effective radiation is:

36. Two different molecules, belonging to different categories, usually combine together to form:

37. Urine is preferably used as a vehicle for biotechnology product than:

38. Photosynthesis is:

39. New ribosomes are assembled in the:

40. The body of birds is covered by:

41. The asexual reproduction in sponges is by:

42. Edward Jenner first developed the technique of vaccination in:

43. Which is the last electron receptor in respiration?

44. Perhaps the most distinctive feature of prokaryotic cell is its:

45. Meristem is a:

46. Plants use evaporative cooling to manage with high:

47. Quantum yield of photosynthesis is:

48. A very useful method of DNA finger printing is:

49. Photosynthesis consists of two well-defined phases, which are:

50. Plants use evaporative cooling to manage with high:

51. The study of life in seas and oceans comes under the heading of:

52. In humans, thermostat responds to changes in temperature above and below a set point which is:

53. A basic knowledge of Biochemistry is essential for understanding:

54. Extinction of a species in a food chain is compensated by:

55. Major unit of ecology is:

56. Archaeopteryx is a fossil of:

57. About three billion base pairs are present in the genome of a:

58. Darwin published "The origin of Species" in:

59. Pigs could be reservoirs to:

60. Temperature phage may exist as:

61. The whole metabolism of the cell is controlled by the proteinaceous agents called:

62. Uric acid is produced from the breakdown of:

63. In the coming years, skin = related disorders will be more common due to:

64. The entire cell wall of prokaryotic cell is often regarded as a single huge molecule known as:

65. A virion is a:

66. It is very difficult to define:

67. A class is a group of related:

68. Retroviruses cause the disease:

69. The cell was discovered by:

70. Name the first microbe to have the genome completely sequenced:

71. The sedimentation coefficient of prokaryotic ribosome is:

72. The regulation of amount of water and solutes in the body is termed as:

73. Succession begins by a few hardy invaders called:

74. Carolus Linnaeus developed the system of nomenclature which is called:

75. Science is a systematized knowledge and based on:

76. Eukaryotes include animals, plants, fungi and:

77. The study of viruses is called as:

78. Which animals show no inter relationship (i.e.,neutralism)?

79. In electron microscope the resolution of microscope ranges between ________.

80. The name animalia is derived from Latin, anima which means:

81. Endangered species of plants have been recorded to more than:

82. Evolutionary change often produces new species and then increases:

83. The study of microorganisms which include bacteria, viruses, protozoa and microscopic algae and fungi comes under:

84. Fungal cell wall is made up of:

85. Contraction and relaxation are the characteristics of:

86. Driving force of ecosystem is:

87. Lysosomes also releases enzymes for extra cellular:

88. In 1997, scientists in Scotland succeeded in cloning a:

89. There are three components for the control system in a living organism to maintain homeostatic balance which are receptors, control centre and:

90. A pollutant which causes mental illness is:

91. Polioviruses are:

92. Which cells do not respire?

93. The protection of internal environment from the harms of fluctuations in external environment is called as:

94. The gizzard is used for crushing food in:

95. Lamarck published his theory of evolution in:

96. Algae have been found to reduce pollution of heavy metals by:

97. Polioviruses are:

98. Succession begins by a few hardy invaders called:

99. It is the beautiful and delicate sponge made up of glass frame work:

100. The study of viruses is called as: