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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
The aquatic organisms that can actively swim at will against the water current is:A. NeustonB. NektonC. PlanktonD. Benthos |
| Answer» Correct Answer - B | |
| 52. |
Smaller extremities in warm-blooded animals of cold areas were proposed by:A. DolloB. GlogerC. AllenD. Bergman |
| Answer» Correct Answer - C | |
| 53. |
The response of different organisms to environmental rhythms of light and darkness is called:A. phototropismB. phototaxisC. photoperiodismD. vernalization |
| Answer» Correct Answer - C | |
| 54. |
The figure given below is a diagrammatic representation of response of organisms to abiotic factors. What do A, B and C represent respectively? A. (A) conformer (B) regulator (C ) partial regulatorB. (A) regulator (B) partial regulator (C ) conformerC. (A) partial regulator (B) regulator (C ) conformerD. regulator (B) conformer (C ) partial regulator |
| Answer» Correct Answer - B | |
| 55. |
Which of the following have evergreen vegetation and drought adapted animals?A. TundraB. SavannaC. ChaparralD. Deciduous forest |
| Answer» Correct Answer - C | |
| 56. |
The biome which is characterized by broad-leafed vegetation, fire-resistant resinous plants and drought evading plants is known as:A. SavannaB. SteppesC. ChaparralD. Deciduous forest |
| Answer» Correct Answer - C | |
| 57. |
Broad-leaved deciduous forests are typical of:A. monsoon regionB. coniferous forestsC. mid-latitude forestsD. mediterranean region |
| Answer» Correct Answer - A | |
| 58. |
The organisms which live in the bottom of lake are called:A. benthosB. nektonC. zooplanktonD. phytoplankton |
| Answer» Correct Answer - A | |
| 59. |
Littoral zone is located along the:A. SeaB. RiversC. DesertD. High mountains |
| Answer» Correct Answer - A | |
| 60. |
The zone of atmosphere in which the ozone layer is present is called:A. StratosphereB. TroposphereC. IonosphereD. Mesosphere |
| Answer» Correct Answer - A | |
| 61. |
From which of the following, photosynthetic autotrophs receive their energy?A. LightB. HeatC. Inorganic chemicalsD. Organic chemicals |
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Answer» Correct Answer - A Solar energy is trapped by plants through photosynthesis. |
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| 62. |
The water zone below 200 meters is called:A. euphotic zoneB. disphotic zoneC. aphotic zoneD. pelagic zone |
| Answer» Correct Answer - C | |
| 63. |
It is much easier for a small animal to run uphill than for a large animal, because:A. It is easier to carry a small body weight.B. Small animals have a lower `O_(2)` requirement.C. Smaller animals have a higher metabolic rate.D. The efficiency of muscles in large animals is less than in the small animals. |
| Answer» Correct Answer - C | |
| 64. |
Which zone of a lake has no photosynthetic organism?A. Littoral zoneB. Limnetic zoneC. Profundal zoneD. Both (b) and (c ) |
| Answer» Correct Answer - C | |
| 65. |
Choose the correct combination of labelling of the zones in water in a lake: A. A = Limnetic zone, B = Profundal zone, C = Littoral zone, D = Benthic zoneB. A = Littoral zone, B = Benthic zone, C = Profundal zone, D = Limnetic zoneC. A = Littoral zone, B = Limnetic zone, C = profundal zone, D = Benthic zoneD. A = Limnetic zone, B = Littoral zone, C = Benthic zone, D = Profundal zone |
| Answer» Correct Answer - C | |
| 66. |
Phytoplanktons are:A. heterotrophsB. autotrophsC. saprotrophsD. all of these |
| Answer» Correct Answer - B | |
| 67. |
Phytoplanktons are dominant in which of the following zones?A. Littoral zoneB. Benthic zoneC. Limnetic zoneD. Profundal zone |
| Answer» Correct Answer - C | |
| 68. |
Branch of zoology that deals with the distribution of animals on Earth is called:A. synecologyB. BiogeographyC. ZoogeographyD. Phytogeography |
| Answer» Correct Answer - C | |
| 69. |
Pronghorned antelopes and bisons are natives of:A. TundraB. ChaparralC. Rain forestD. Grassland and savanna |
| Answer» Correct Answer - D | |
| 70. |
The least porous soil among the following is a:A. Loamy soilB. Silty soilC. Clayey, soilD. Peaty soil |
| Answer» Correct Answer - C | |
| 71. |
Moderate rainfall during summer produces:A. DesertB. grasslandsC. shrub forestD. Deciduous forest |
| Answer» Correct Answer - B | |
| 72. |
A place where a plant or animal lives:A. HabitatB. NicheC. BiomeD. Ecosystem |
| Answer» Correct Answer - A | |
| 73. |
Social position held by one organism with respect to its other associates is termed:A. NicheB. HabitatC. EcotoneD. Ecosphere |
| Answer» Correct Answer - A | |
| 74. |
The presence of diversity at the junction of territories of two different habitats is known as:A. Edge effectB. Junction effectC. Pasteur effectD. Bottle neck effect |
| Answer» Correct Answer - A | |
| 75. |
Under unfavourable conditions many zooplankton species in lakes and ponds enter a stage of suspended development called:A. DormancyB. HibernationC. DiapauseD. Menopause |
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Answer» Correct Answer - C Diapause is a period during which growth or development is suspended and physiological activity is diminished, as in certain insects in response to adverse environmental conditions. |
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| 76. |
Benthos are:A. periphytonB. zooplanktonC. epineustonD. bottom dwelling primary consumers |
| Answer» Correct Answer - D | |
| 77. |
Nektons are:A. algaeB. floating plantsC. suspended lower plantsD. organisms that swim in water |
| Answer» Correct Answer - D | |
| 78. |
The northern circumpolar boreal forest comprises:A. TaigaB. TundraC. SavannaD. Chaparral |
| Answer» Correct Answer - B | |
| 79. |
The grasslands in Asia are known as:A. pampasB. veldtsC. prairiesD. steppes |
| Answer» Correct Answer - A | |
| 80. |
Animals like cockroaches, lizards and mice share the building of human dwellings. Such animals are called:A. humusB. cultigensC. inquilinesD. pelagice |
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Answer» Correct Answer - C An animal that characteristically lives commensally in the nest, burrow, or dwelling place of an animal of another species. |
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| 81. |
What is ecological equivalent of horses in Australian savanna?A. BisonB. ZebraC. AntelopeD. Kangaroo |
| Answer» Correct Answer - D | |
| 82. |
A tropical grassland, usually with scattered trees or shrub is called:A. TaigaB. SavannaC. TundraD. None of these |
| Answer» Correct Answer - B | |
| 83. |
What will happen to a well growing herbaceous plant in the forest if it is transplanted outside the forest in a park?A. It will grow normallyB. It will grow well because it is planted in the same localityC. It may not survive because of change in its micro climateD. It grows very well because the plants gets more sunlight |
| Answer» Correct Answer - C | |
| 84. |
Aquatic animals which can tolerate only a narrow range of salinity are said to be:A. EuryhalineB. StenohalineC. PoikilothermsD. Catadromous |
| Answer» Correct Answer - B | |
| 85. |
The factors governing the structure of soil are:A. bioticB. edaphicC. temperatureD. topographic |
| Answer» Correct Answer - B | |
| 86. |
Match the following and choose the correct combination from the options given: A. A = 1, B = 3, C = 4, D = 5B. A = 3, B = 2, C = 1, D = 5C. A = 4, B = 3, C = 2, D = 1D. A = 2, B = 4, C = 1, D = 3 |
| Answer» Correct Answer - D | |
| 87. |
Law of limiting factors in photosynthesis was given by:A. CalvinB. R. HipC. BlackmannD. Arnon |
| Answer» Correct Answer - C | |
| 88. |
In which of the following biome maximum number of plants and animals are found?A. DesertsB. TundraC. Tropical rain forestD. Temperate deciduous forests |
| Answer» Correct Answer - C | |
| 89. |
Treeless terrestrial biome of cold climate is:A. taigaB. TundraC. SavannaD. plankton |
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Answer» Correct Answer - B Tundra is the coldest of all the biomes. Tundra comes from the Finnish word tunturi, meaning treeless plain. It is noted for its frost-molded landscapes, extremely low temperatures, little precipitation, poor nutrients, and short growing seasons. |
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| 90. |
A natural region characterized by hot summer, warm winter and treeless vegetation is:A. topical desertB. steppes grasslandC. savanna grasslandD. temperate desert |
| Answer» Correct Answer - A | |