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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.
| 1. |
Temperature changes in the environment affect most of the animals which are:A. aquaticB. desert livingC. poikilothermalD. homoiothermal |
| Answer» Correct Answer - C | |
| 2. |
Insectivorous plants grow in soil which is deficient in:A. `N_(2)`B. CaC. MgD. Water |
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Answer» Correct Answer - A Insectivorous plants like Nepenthes, Ultricularia, Drosera and Dionea grow in soil deficient in nitrogen. They capture insects to get nitrogen from their protein. |
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| 3. |
Plants growing in extreme cold soil are:A. OxylophytesB. HalophytesC. PsychrophytesD. Psammophytes |
| Answer» Correct Answer - C | |
| 4. |
Plants growing in sandy areas are called:A. HalophytesB. PsammophytesC. OxylophytesD. Eremophytes |
| Answer» Correct Answer - B | |
| 5. |
Plants which are attached to the stones and rocks are:A. HalophytesB. AerophytesC. LithophytesD. Psammophytes |
| Answer» Correct Answer - C | |
| 6. |
Plants of salty seashore wetlands are called:A. HeliophytesB. HalophytesC. saprotrophsD. Hydrophytes |
| Answer» Correct Answer - B | |
| 7. |
All populations in a given physical area are defined as:A. TerritoryB. PopulationC. EcosystemD. Biotic community |
| Answer» Correct Answer - D | |
| 8. |
Assertion (A) : Daphnia populations in a water body, at different seasons of an year showed market variations in their body morphology. Reason (R ) : Cyclomorphosis in some planktonic organisms is influenced by the variations in temperatures prevailing in their water bodies at different seasons.A. Both (A) and (R ) are true and (R ) is the correct explanation of (A)B. Both (A) and (R ) are true but (R ) is not the correct explanation of (A)C. (A) is true statement but (R ) is falseD. Both (A) and (R ) are false |
| Answer» Correct Answer - A | |
| 9. |
Total surrounding of an organism including other plants and animals and those of its own kind is known as:A. NicheB. BiosphereC. EnvironmentD. All of these |
| Answer» Correct Answer - C | |
| 10. |
Which one of the following layers of the atmosphere has maximum density?A. StratosphereB. TroposphereC. MesosphereD. Thermosphere |
| Answer» Correct Answer - B | |
| 11. |
Large unit of land having different types of plants and animals is known as:A. ecosystemB. uniform vegetationC. biomeD. niche |
| Answer» Correct Answer - C | |
| 12. |
The correct match of atmosphere gases is:A. Nitrogen = `0.03%`, Oxygen = `78.95%`, Argon = `0.03%`, `CO_(2)=20.95%`B. Nitrogen = `78.08%`, Oxygen = `20.08%`, Argon = `0.93%`, `CO_(2)=0.03%`C. Nitrogen = `0.03%`, Oxygen = `78.08%`, Argon = `20.95%`, `CO_(2)=0.93%`D. Nitrogen = `78.08%`, Oxygen = `20.95%`, Argon = `0.93%`, `CO_(2)=0.03%` |
| Answer» Correct Answer - D | |
| 13. |
Functional aspect of a species with reference to the plate of its occurrence is called:A. speciesB. ecologyC. environmentD. ecological niche |
| Answer» Correct Answer - D | |
| 14. |
Maximum water holding capacity is possessed by which kind of soil?A. SiltB. SandC. ClayD. Gravel |
| Answer» Correct Answer - C | |
| 15. |
A large regional unit characterised by vegetation type and associated fauna found in a specific climatic zone is called:A. biomeB. biosphereC. landscapeD. ecosystem |
| Answer» Correct Answer - A | |
| 16. |
Atmosphere consists of:A. troposphere + stratosphere + mesosphereB. lithosphere + hydrosphere + ozonosphereC. lithosphere + stratosphere + hydrosphereD. none of the above |
| Answer» Correct Answer - A | |
| 17. |
Lime is added to the soil which is too:A. SaltyB. AcidicC. SandyD. Alkaline |
| Answer» Correct Answer - B | |
| 18. |
The solid components of Earth comprise:A. HydrosphereB. LithosphereC. AtmosphereD. Ionosphere |
| Answer» Correct Answer - B | |
| 19. |
Humus is:A. totally decomposed organic matter in a pondB. totally decomposed organic matter in the soilC. partially decomposed organic matter in the soilD. partially decomposed organic matter in a pond |
| Answer» Correct Answer - C | |
| 20. |
Which of the following is not a climatic factor?A. HumidityB. RainfallC. SnowfallD. Substratum |
| Answer» Correct Answer - D | |
| 21. |
Biosphere is made up of:A. organismsB. organisms + lithosphereC. organisms + lithosphere + atmosphereD. organisms + lithosphere + atmosphere + hydrosphere |
| Answer» Correct Answer - D | |
| 22. |
The term 'niche' of a species refers to:A. specific and habitual functionB. specific function of an organismC. competitive power of an organismD. specific place where an organism lives |
| Answer» Correct Answer - A | |
| 23. |
Biosphere isA. life in the outer spaceB. a component in the ecosystemC. composed of the plants present in the soilD. composed of all living organisms present on Earth which interact with the physical environment |
| Answer» Correct Answer - D | |
| 24. |
Biosphere is called as:A. part of atmosphere where the living beings can liveB. part of atmosphere where the living beings cannot liveC. both (a) and (b)D. none of the above |
| Answer» Correct Answer - D | |
| 25. |
Pedology refers to:A. Study of soilB. Study of populationC. Study of fossilsD. Study of water |
| Answer» Correct Answer - A | |
| 26. |
The livable part includes:A. lithosphereB. hydrosphere.C. AtmosphereD. all of these |
| Answer» Correct Answer - D | |
| 27. |
Humus is important for plant growth because:A. it is rich in nutrients and increases the water holding capacity of soilB. it is made up of dead organic matterC. it is partially decomposedD. it is derived from leaves |
| Answer» Correct Answer - A | |
| 28. |
The term 'biosphere' refers to:A. atmosphereB. stratosphereC. living community with whole ecosystemD. none of the above |
| Answer» Correct Answer - C | |
| 29. |
The sphere of living matter together with water, air and soil on the surface of Earth is called:A. biosphereB. LithosphereC. AtmosphereD. Hydrosphere |
| Answer» Correct Answer - A | |
| 30. |
Name the famous Indian plant ecologist:A. Birbal SahniB. Ramdeo MisraC. M.S. SwaminathanD. Jagdish Chandra Bose |
| Answer» Correct Answer - B | |
| 31. |
Ecology takes into account of:A. effect of plants on environmentsB. environmental factors onlyC. plants adaptations onlyD. all of the above |
| Answer» Correct Answer - D | |
| 32. |
Highest order in ecology is:A. biosphereB. CommunityC. populationD. ecosystem |
| Answer» Correct Answer - A | |
| 33. |
The study of ecology was started by:A. Charles EltonB. Karl MobiusC. F.E. ClementsD. Johannes Warming |
| Answer» Correct Answer - D | |
| 34. |
Ecology deals with the study of:A. insectsB. microorganismsC. economic differences of countriesD. relationship between living and nonliving |
| Answer» Correct Answer - D | |
| 35. |
Who gave the terms 'Autecology' and 'Synecology'?A. A.G. TansleyB. Karl MobiusC. Schroter and KirchnerD. Alexander von Humboldt |
| Answer» Correct Answer - C | |
| 36. |
Study of interrelationships between a species and its environment is called:A. AutecologyB. SynecologyC. Forest ecologyD. Resource ecology |
| Answer» Correct Answer - A | |
| 37. |
Ecology is the study of the relationship of:A. organisms and environmentB. man and environmentC. husband and wifeD. soil and water |
| Answer» Correct Answer - A | |
| 38. |
A branch of ecology which is concerned with the study of individual species at all stages of its life cycle in relation to environment is called:A. synecologyB. autecologyC. Ecological nicheD. Reproductive ecology |
| Answer» Correct Answer - B | |
| 39. |
Synecology is the study of:A. waterB. individualsC. environmentD. community in relation to environment |
| Answer» Correct Answer - D | |
| 40. |
The comprehensive study of an organism and its relation to its environment is called:A. synecologyB. autecologyC. bionomicsD. herpetology |
| Answer» Correct Answer - C | |
| 41. |
The study of an entire community in relation to its environment is called:A. AutecologyB. SynecologyC. Resource ecologyD. Space ecology |
| Answer» Correct Answer - B | |
| 42. |
Largest terrestrial community of an entire geographical belt over which plant and animal species may be found is called:A. BiomeB. HabitatC. RangeD. Niche |
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Answer» Correct Answer - A Biome comprises an extensive ecological community usually with a dominant vegetation. |
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| 43. |
The study of plant community structure is called:A. EcologyB. PhytosociologyC. AutecologyD. Ecosystems |
| Answer» Correct Answer - B | |
| 44. |
Which of the following statements is/are true? 1. A community and its habitat mutually interact. 2. A community and its habitat are interdependent. 3. A community and its habitat exist independently. Answer codes:A. 1 and 2B. 1 aloneC. 1 and 3D. 2 alone |
| Answer» Correct Answer - A | |
| 45. |
Which one of the following is one of the characteristics of a biological community?A. NatalityB. MortalityC. Sex-ratioD. Stratification |
| Answer» Correct Answer - D | |
| 46. |
The area over which animals move in search of food is called:A. NicheB. HabitatC. TerritoryD. Home range |
| Answer» Correct Answer - D | |
| 47. |
Pelagic forms of animals are found:A. on the surface of the sea floating along the wavesB. as parasites of mammalsC. in deep seaD. in the soil |
| Answer» Correct Answer - A | |
| 48. |
Organisms capable of swimming and resting on the surface of water are termed:A. NeustonB. NektonC. PlanktonD. Benthos |
| Answer» Correct Answer - A | |
| 49. |
Aquatic animals that are able to move at will through the water:A. NektonB. NeustonC. PlanktonD. All of these |
| Answer» Correct Answer - A | |
| 50. |
Organisms capable of maintaining constant body temperature are:A. conformersB. stenothermalC. poikilothermalD. homoiothermal |
| Answer» Correct Answer - D | |