1. Which option is not correct for the given diagram ?
Correct : B. It indicate stable population
2. A Snake feed on frog, the hawk feed on this snake. What is the place of snake in foodchain?
Correct : C. secondary consumer
3. What is correct for the given diagram?
Correct : A. Pre- re productire group people are more in number
4. Orchid living on the tree is an example of ..............?
Correct : C. Commensalism
5. Population of which of the following will be highest in the foodchain?
Correct : C. Photosynthetic organism
6. System resulting from interaction of all the known living factors and populaton of all the species of a unit area is...
Correct : D. Ecosystem
7. Which of the following is the correct statement for food chain?
Correct : D. All of the given
8. Which of the following uses maximum energy?
Correct : D. Primary Producers
9. Through, whoch of the following, enery enters in an ecosyslem?
Correct : B. Producer
10. Why is algae placed in first place of food chain ?
Correct : A. Algae is first to synthesize food.
11. In which of the following wheat eating pegions included ?
Correct : B. Primary consumer.
12. which of the following is placed in upper most (highest) level of ecological pyramids.
Correct : B. Carnivors
13. As we proceed in food chain, bio-mass.....
Correct : B. Decreases
14. In ecosystem the source of energy is....
Correct : C. The Green plant
15. Who is primary consumer of biotic community ?
Correct : A. Herbivores/ Grazing animal
16. In which of the following weeds are placed ?
Correct : A. Primary producer
17. When does the energy flow start in an ecosystem ?
Correct : B. When sun rises
18. which of the following option is correct for storage place phosphorus and nitrogen respectively ?
Correct : B. Parental rock and environment
19. An individual ''x'' uses mashroom as food then in which trophic level mashroom and''x'' are included?
Mashroom X Foodchain
Correct : B. Primary Secondary Detritivorous food chain
20. Which of the following is trophic level of the orchid staying on mango tree ?
Correct : A. First
21. It is correct for ecosystem.......
Correct : A. ( Plants, Animals, Microorganisms) + Abiotic environment
22. What is the original source of energy for the living organisms ?
Correct : B. Sun light
23. In which of the following curd eating people are included ?
Correct : A. Producer
24. The functional efficiency of ecosystem is effected when decomposers are removed from it, because..
Correct : D. Flow of nutrient will stop.
25. From which of the following detritus food chain will start ?
Correct : B. Bacteria
26. At Each trophic level, in which form energy is lost ?
Correct : A. Heat
27. Which Source of eutrophication is the modern source of phosphorus ?
Correct : A. Detergent
28. It helps in absorbtion of phosphorous ?
Correct : B. Mycorriza
29. In a day, How many times an individual inspire and expire (breathing) ?
Correct : C. 40,000
30. What percentage of total metabolic energy is produced through fermentation of lactic acid ?
Correct : B. 70%
31. Which of the following opteon is correct for CO2
absorption in CAM ?
Correct : A. During night
32. Few statements are given below in reference with Thermodynamics, Which of the following option shows all correct statements for it ?
(I) Amount of energy is constant.
(II) During transfer of energy some amount of energy is converted in to heat.
(III) Free energy = energy which can do work.
(IV) At each tophic level amount of stored energy reduces.
Correct : D. All of the given
33. X is released in Halophytes and Y is source of it, , Z process occurs in- estuary, then What does x,y,z indicate?
Correct : C. X -Phosphorus Y - Sewage water Z- Eutophication
34. If energy produced by producer is 1000 units, than What amount of energy will be found in highest level of consumer ?
Correct : C. 1
35. What does given chart indicate ?
Correct : C. First and second law of Thermodynamics
36. What is incorrect for oxygen ?
Correct : C. It is essential for all the organisms.
37. X is source of y. but y never return to x, Than which option is wrong for x and y.
Correct : D. A and B are Wrong.
38. What does pyramid of Bimass of an ecosystem indicate in....
Correct : C. Organisation of tissue of each tophic level
39. Which option is correct for the given information ?
(1) Ecosystem is an outcome of an interaction between all living components and non- living components of Environment.
(2) GPP= NPP- loss due to respiration
(3) Primary productivity is measured in dry biomass.
Correct : D. TTF.
40. In one forest maximum 500 lions can be allowed with than what does 500 indicate ?
Correct : C. Carrying Capacity of Population
41. At which vital index population is stable ?
Correct : D. 100
42. If earth is considered a unit region then it can be compared to....
Correct : A. Eco-System
43. Who accepts the nutrient released in environment by docomposer ?
Correct : B. Producers
44. If herbivores are "5" in number in the given food chain then, what will be the total number of trophic layers in the it ?
Correct : D. can not be predicted
45. which organism provided useable phosphate from dead organisms?
Correct : D. Bacteria, Fungi
46. How many times do we breathe per day ?
Correct : A. 20,000
47. It is first stem of the decomposition of organic compound.
Correct : A. Fragmentation - In body of Scavengers
48. Autotrophs use [X] and Produces [Y], which is store as [Z], which of the given option is correct for X, Y, and Z ? X Y Z
Correct : A. Sunlight Nutrient Chemical
49. What is an Original Source of energy flow in any food chian ?
Correct : B. Produces
50. Immature fall of floral bud and fruits are observed in a farm, and on leaves Red and purple pigments spots are observed, In which of following place is Such Symptoms will not be observed in plants
Correct : C. Foot hills of mountain
51. who is responsible for the process like, Phosphate Containing Organic compound Phosphate
Correct : C. Certain Specific bacteria
52. which of the following eco-system has highest annual primary productivity ?
Correct : B. Tropical Rain forest
53. Which of the following is not a functional unit of ecosystem ?
Correct : A. Stratification
54. Which of the following associations do not establish functional interspeciific association ?
Correct : D. Commensalism
55. Which statement is correct ?
Correct : C. In all CO2 acceptor plants, organic compounds are produce throudh photosynthesis.
56. It is the type of photosynthesis occurs in most of the plants ?
Correct : B. C3 - Cycle
57. In which of the following alimentory canal, '' starch glucosen'' is prodused ?
Correct : B. Ist trophic layer
58. In an ecosystem, Which of the following is unidirectional ?
Correct : D. Free energy
59. Who is first to receive Phosphate released through leaching in phosphate cycle ?
Correct : B. producer
60. Which of the following is not a pair of Gaseous cycle ?
Correct : C. N & S
61. What is indicated by Pyramid of number ?
Correct : A. Number of individuals at every trophic layer.
62. Which of the following has maximun importance (value) in grass- land.
Correct : D. Total Production.
63. Grass cow lion. If productivity of grass is 5000 kg/ Meter/ year. Then What will be the
productivity of lion ? (In general)
Correct : B. >50
64. In which stage of the Decomposition, larger surface area for future decomposition is availabel?
Correct : A. st 1
65. In the given chart from carnivores to producer energy level gradually.
Correct : B. Increases
66. which of the given option is shows more stable ecosystem ? Producer primary Secondary Tertiary Total consumer consumer consumer
Correct : B. 900 500 225 40 1665
67. which of the following is one of the causes of cancer ?
Correct : C. Inadcquale of O2 supply
68. which option is more suitable for x and y ?
X : Animal cells possesses mitochondria.
Y : IN animal cell energy is released when carbohydrates are completely broken .
Correct : C. If x is correct then only y is correct .
69. Which of the following stage is possible by the activity of Hetorotrophs ?
Correct : D. All the given
70. The herbaceohs plant has 100 gram whight then what would be the average bio-mass of the same ?
Correct : C. 10-15 gram
71. In the given pyramid of energy which of the following can be placed in first trophic level ?
Correct : C. a & b Both
72. X is structaral unit of economy and y is structra unit of x then ... what is the x and the y ? X Y
Correct : B. Ecosystem - Biomass,Biotic factor
73. X is maintained by man, but it is harmful to y ,the x and y are (?)
X Y
Correct : B. Man made ecosystem - Natural eco-system
74. X is included in environmental factors; y is included in ediphic ( soil related) then the x & y is....
X Y
Correct : D. Wind Air
75. Which one is the maximum suitable to from top of the energy pyraimd ?
Correct : A. Therdary consumer
76. Which component are basic in maintaing body processes?
Correct : D. All of this
77. What is mycorhizer ?
Correct : A. Root + Fungi = Symbioti
78. It is key- compound for all living organism ?
Correct : B. Phosphures
79. It 1 lac living organisms are included in third throphie lavel than what would be the number of producers ?
Correct : D. 1crore (millian)
80. In an ecosystem, when organisms can be included in more than one trophic lager ?
Correct : B. Fish
81. When organism of aquatic ecosystem is at equvalent trophee level in when cow is included ?
(DUMET...2009)
Correct : A. Zooplankton
82. Which of the follows is an in complent Ecosystem ? (WBJEE 2008)
Correct : B. Cave
83. What is correct for human ?
Correct : D. Omnivores
84. which type of food chain is represented by following example ?
Dead animals insect seavenger Frog Snake
Correct : B. Detritivorous food chain
85. which type of organisms , fungi & Bacteria of forest ecosystem generally called ?
Correct : B. Decomposers
86. what is correct for the artificial ecosystem ?
Correct : A. Biodiversity is less
87. Pollution is any undesirable change in physical, chemical and biological characteristics of.
Correct : D. All of these
88. To protect and improve the quality of our environment which act was passed and in Which year?
Correct : A. The environment act 1986
89. What is the effect of air pollution on living organisms?
Correct : D. Both A and B
90. Which gas is responsible for increase in atmospheric temperature?
Correct : B. CO2
91. 99% of SPM in the exhaust of thermal power plant can be separated by.. .
Correct : D. Chimney
92. In an Electrostatic precipitators the velocity of air blown between the plates must be.
Correct : A. Low
93. The Scrubber is used to remove gases like…
Correct : A. SO2
94. Particulate matter of which size causes greatest harm to human health?
Correct : A. 2.5 micrometer or less in diameter
95. Which type of damage can be caused by Particulate matter of 2.5 micrometer or less in diameter to human health?
Correct : D. All of these
96. Which is the main cause of atmospheric pollution in major cities?
Correct : C. Automobiles
97. Which catalyst should be fitted into filters in order to reduce emission of poisonous Gases?
Correct : B. Rhodium
98. Which metal is the main air pollutant in metro cities?
Correct : A. Lead
99. Which catalyst converts unburnt hydrocarbons into CO2 andH2O?
Correct : A. Platinum-Palladium
100. What is the effect of catalytic converter on carbon monoxide and nitrogen oxide of exhaust?
Correct : B. Converts them into CO2 andNitrogen gas