BT101 Midterm Past Papers by Arham

OBJECTIVEs

1. The species occupation in its environment is tremendous ________ Beavers/ Foundation Species.

2. Top most horizon is ---------- O Horizon .

3. --------Plays a major role in shaping communities ------- Foundation Species.

4. The process of making carbohydrates from water and carbon dioxide Is called Photosynthesis.

5. Panda Is an example of --------- Specialist Specias.

6. Plant names Viola Orvensis Is present In ---------- Basic Soil .

7. Species having wider range of niches -------- Generalist Species.

8. Corals are tiny living animals belong to group of organisms --------Cnidarians.

9. The large natural bodies of standing freshwater found by precipitation on run off are -- Lakes.

10. Aestivation Is commonly occurred In Many Invertebrates Reptiles And Amphibians.

11. Division of freshwater ecosystems are --------Lotic And Lentic Water Bodies.

12. Currently human population is about ---------- 7.4 Billion.

13. The rate that new organic matter is made by means of individual growth and reproduction in all the

herbivores is------------ Secondary Productivity .

14. Liberating chemical-bond energy for metabolic use in glycolysis, Krebs’s cycle and electron transport

chain --------Heterotrophs

15. Introduced to Hawaii in the late 1800's -----------Asian Tiger Mosquito.

16. There is No limit to number of -- in Mullerian mimicry --- Species Participating.

17. Negative Phototactic movement occurs in --------Earthworms.

18. Oscillations are produced hy interactions between populations of at least --different species --- Two.

19. Mutualistic gut flora e.g cellulose digesting --------- Bacteria

20. Removal of apex predator in environment called --------- Cascade Effect.

21. Analogous structures are the product of --------- Convergent Evolution

72. Use of DDT was Banned in US in --------- 1972.

73. At either limit, one or more essential functions cease --------- Tolerance Range .

74. They Synthesis of the organic compounds of their bodies from inorganic precursors -------- Autotrophs

75. It Occurs when uptake from the water is greater than excretion---Bio concentration

26. Pere David's deer was a native species of ______China

27. Mutualism is Long-term relationship between individuals of ____Different Species

28. High population ___ can lead to the accumulation of harmful waste products that kill individuals or

impair reproduction, reducing the population's growth.---Densities

29.

30. __ Is a group of population occupying same space in a particular time.----Community.

31. __ Is a group of individuals belonging to same species occupying same space in a particular.-----------

Population.

32. Interaction as a system between both components -------- Non Living Components AUTUMN 2023 33. Gross primary productivity Gap Raw rate at which the synthesize new organic matter.- ----Primary

Producers.

34. A population Increase by immigration and decrease by ------- or departure of Individuals from the

population ------------Emigration .

35. CFCs destroy the -------- layer in the atmosphere--------Ozone

36. The main environmental force that influence the terrestrial plants -----------. Gravity.

37. Butterflies are one of the best example of--------- Indicator Species.

38. Measurements of species per unit area are Called --------Species Richness

39. Geographic limit causes the size of a population .----------- Decrease

40. The species occupation in its environment is tremendous -------Beavers.

41. Breakdown of tissues by bacteria Is called --------. Putrefaction

42. Breakdown of tissues by the body's own internal chemicals and enzymes Is called Autolysis.

43. Plant and food Is the primary source of ------- Ominvores

44. There are ----- types of herbivory depending upon different feeding habits. ---- 8

45. The process occurs In dark habitats ---------- Chemoautotrophs

46. Synthesis of organic compounds of their bodies from inorganic precursors Autotrophs

47. Animals use -------- energy to make organic molecules ________Chemical Energy.

48. Formed in response to specific external factors in that environment ------------Biome.

49. The external factors are -------- Climate And Topography

50.

51. Response of an organism towards an abiotic stimuli ___ Taxi (Light)

52. Example of primary consumer ___ Zooplankton, Cow,Zebra, Grasshopper, Deer Etc

53. The living portion of earth surface is named as __Biosphere

54. The population density of small organisms is __High

55. Hawk is an example_____________ Tertiary Consumer

56. Nitrogen is in atmosphere is ______ 78%

57. Plants use direct sunlight in process of_____ Photosynthesis

58. Which can eat both plants and animals _____Omnivores

59. The condition at which organisms are most successful in survival_Range Of Optimum

60. Land producers capture_____of solar radiations -------1%

61. Hibernating animals have____ Low Body Temperature

62. Y-axis is a logarithmic plot of numbers of survivors X-axis Is a linear plot of __Age

63. The first community to become established In an area ts called __Pioneer Community

64. High population _______ can lead to the accumulation of harmful waste products that kill individuals

or impair reproduction, reducing the population's growth ___Densities

65.

66. Subset of the food-web --- |s Impacted by a change In population Number --Dynamic

67. Which animal change its color rapidly ---------Chameleon

68. Plant algae and cyanobacteria are--------- Photo Autotrophs 69. Plants are --------- Autotrophs

70. oxygen atom form--------- Ozone.

71. above thermosphere is -----------Exosphere

72. Second layer is ---------------Stratosphere

73. . This process of evaporation through plant leaves is called ----------Transpiration.

74. Exotic Species are species that occur outside of thelr natural ranges because of human activity

75. Deforestation directly affects rate of --------- Transpiration

76. ----- are worst affected due to their edges--------Plants..

77. Sometimes species cannot utilize their ------- niche-------Entire.

78. Camouflage also known as --------Cryptic Coloration

79. Transparency more efficient in --------Deeper Water.

80. _______ is produced as result of lightening------Nitric Acid

81. The shape of type Il survivorship curve is______Diagonal

82. Female ----- enters via ostiole and oviposits in female flowers--------- Wasp

83. The ________located directly above the thermosphere------- Exosphere .

84. -------is useful tool to distinguish atmospheric layers-------Temperature.

85. HMS Beagle set sail on December 27, 1831 on a ------voyage ------5-Year.

86. Each successional Stage is called a --------Seral Stage.

87. Animal wastes, plant residues have -------- BOD --------High .

88. ______water holds less DO than cold water-------- Warm.

89. Chemicals that contain carbon atoms are called --------Organic Compounds

90. Third Atmosphere Reduces the amount of ------- in the atmosphere --------Oxygen.

91. Zebra Mussel Accidentally introduced to the Great Lakes in ------1988

92. A _ Feeds on plants such as grasses, soft flowering plants (forbs) and algae –Grazers

93. Genetic code of_______ is universal---------mRNA

94. Invertebrates predator are such as--------- Jelly Fish

95. Ticks and mites are the example of-------Ectoparasites.

96. Removal of the top -------can alter the food web dynamics-------- Predators.

97. Which of these Native to the Pacific Ocean ---------Lionfish

98. They can breakdown Carbohydrate Anaerobically also-------Bacteria

99. Extinct hippopotamus like animal, now called --------Toxodon

100. Disjunct Distribution occur due to following barriers except ---------Chemical
101. In the process of bacteria. release compounds such as cadaverine and putrescine causing decaying odor

-------Putrefaction.

102. Reduction in area of safe zones for prey making them vulnerable to----.Predators
103. Mutualism is the long-term relationship between individuals of ----Species Different
104. Atmosphere of Earth is the layer of .......... Gases
105. Population size---------above carrying capacity-----Decreases.
106. Horses had been present and had become extinct long ago in ------- S.America .