This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 1 The Living World – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 1 The Living World Quiz 10 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The collective mass of all living things in a particular area or at a specific trophic level of an ecosystem is known as ..... A) Population Size. B) Biomass. C) Apex Trophism. D) Biomagnification. Show Answer Correct Answer: B) Biomass. 2. Identify the mismatched one? A) Pantheraleo = Lion. B) Pantheratigris = Tiger. C) Pantheraleo = Leopard. D) Pantherapardus = Leopard. Show Answer Correct Answer: C) Pantheraleo = Leopard. 3. What is the name of the Thar desert mineral that is used to make plaster? A) Gypsum. B) Dimsum. C) Marble. D) Granite. Show Answer Correct Answer: A) Gypsum. 4. Assertion (A):In living organisms, energy transformation also takes place during metabolism.Reason(R):Organism has to perform many biological activities. A) Both (A) & (R) are true, and (R) is the correct explanation of (A). B) Both (A) & (R) are true, and (R) is not the correct explanation of (A). C) (A) is true, but (R) is false. D) (A) is false, (R) is true. Show Answer Correct Answer: A) Both (A) & (R) are true, and (R) is the correct explanation of (A). 5. Which of the following statements is incorrect regarding the modern taxonomy? A) It deals with biological species . B) It is based on the study of all types of variations in the species. C) Species is considered to be static . D) It has a bio systematic concept. Show Answer Correct Answer: C) Species is considered to be static . 6. The formation of two species from one species when different populations of a sexually reproducing species have been separated and exposed to different environmental conditions so long that their genetic makeup has changed; usually takes thousands of years. This is referred to as ..... A) Adaptation. B) Speciation. C) Photosynthesis. D) Mutation. Show Answer Correct Answer: B) Speciation. 7. Which of the following is a useful effect of micro-organisms? A) Using Fungi (yeast) in bakery food products. B) Algae is used to produce oxygen. C) Bacteria is used in yoghurt, curd and cheese production. D) Algae is used to make marmite. Show Answer Correct Answer: D) Algae is used to make marmite. 8. Scientific name of plants are given by A) International code for biological plants. B) International code for zoological nomenclature. C) International code for Botanical nomenclature. D) Indian code for Botanical nomenclature. Show Answer Correct Answer: C) International code for Botanical nomenclature. 9. Which of the following is vestigial teeth foundin human A) Incisors. B) Premolars. C) Wisdom tooth. D) Diphyodont. Show Answer Correct Answer: C) Wisdom tooth. 10. Which species is an example of a generalist species? A) Raccoon. B) Red panda. C) Koala bear. D) Panda bear. Show Answer Correct Answer: A) Raccoon. 11. Which is not a cause of deforestation in the Amazon Rainforest? A) Resettling. B) Mineral Extraction. C) Ecotourism. D) Roads. E) Logging. Show Answer Correct Answer: C) Ecotourism. 12. Extinction of a single species can effect the functioning of an ecosystem. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 13. Which of the following is an example of an abiotic factor in an ecosystem? A) Grass. B) Rabbit. C) Sunlight. D) Bacteria. Show Answer Correct Answer: C) Sunlight. 14. The grouping of plants into herbs, shrubs, and trees is based on: A) Leaf size. B) Root length. C) Height and stem nature. D) Number of flowers. Show Answer Correct Answer: C) Height and stem nature. 15. The body of diatoms is characterized by: A) Thin cellulose membrane only. B) Two thin overlapping shells embedded with silica. C) Chitin wall. D) No wall. Show Answer Correct Answer: B) Two thin overlapping shells embedded with silica. 16. Botanical gardens and Zoological parks have A) Collection of endemic living species only. B) Collection of exotic living species only. C) Collection of endemic and exotic living species. D) Collection of only local plants and animals. Show Answer Correct Answer: C) Collection of endemic and exotic living species. 17. How do animals get the carbon they need? A) Eating plants. B) Breathing it in. C) Decomposing. D) Combustion. Show Answer Correct Answer: A) Eating plants. 18. Which of the following statements about ecological succession is correct? A) Secondary succession is followed by primary succession. B) Primary succession occurs over a shorter time span than secondary succession. C) Succession is influenced by competition for limiting resources such as available soil, moisture, and nutrients. D) In forest succession, less shade-tolerant trees replace more shade-tolerant trees. Show Answer Correct Answer: C) Succession is influenced by competition for limiting resources such as available soil, moisture, and nutrients. 19. This relationship is where one species fully benefits, and the other species is not harmed nor do they benefit A) Commensalism. B) Predation. C) Mutualism. D) Parasitism. Show Answer Correct Answer: A) Commensalism. 20. Which one of the taxonomic aids can give comprehensive account of complete compiled information of any one genus or family at a particular time? A) Taxonomic key. B) Flora. C) Herbarium. D) Monograph. Show Answer Correct Answer: D) Monograph. 21. A material suitable to make wires is A) Rubber. B) Copper. C) Graphite. D) None of the above. Show Answer Correct Answer: B) Copper. 22. Why are sea otters so crucial to an ecosystem? A) They aren't. B) They provide us with nutrients. C) They build dams and help rivers flow. D) They feed on sea urchins which are harmful to kelp forests. Show Answer Correct Answer: D) They feed on sea urchins which are harmful to kelp forests. 23. Define the term:Ecosystem. A) An ecosystem is a community of living organisms and their physical environment interacting as a system. B) An ecosystem is a type of weather pattern found in forests. C) An ecosystem is a process of water evaporation from oceans. D) An ecosystem is a method of plant reproduction. Show Answer Correct Answer: A) An ecosystem is a community of living organisms and their physical environment interacting as a system. 24. What is the climate like in the tundra biome? A) Very cold and dry. B) Very cold and wet. C) Very warm and dry. D) Very warm and wet. Show Answer Correct Answer: A) Very cold and dry. 25. Which of these organisms can live both on land and in water? A) Crow. B) Dog. C) Frog. D) Lion. Show Answer Correct Answer: C) Frog. 26. When total photosynthesis exceeds total respiration: A) Carbon will increase in the atmosphere. B) Carbon will increase in the biosphere. C) Average global temperatures will increase. D) The carbon in the atmosphere and biosphere will not change. Show Answer Correct Answer: B) Carbon will increase in the biosphere. 27. Which level of biological organization is the smallest? A) Organ. B) Cell. C) Organism. D) Tissue. Show Answer Correct Answer: B) Cell. 28. Identity the correct sequence A) C)species-genus-order-phylumn. B) B) genus-species-order-Kingdom. C) D) class-order-phylum-Kingdom. D) A species-order-phylum-Kingdom. Show Answer Correct Answer: A) C)species-genus-order-phylumn. 29. Which of the following describes the direction of the flow of energy in a food chain? A) From parasite to host. B) From one mutual to another. C) From predator to prey. D) From prey to predator. Show Answer Correct Answer: D) From prey to predator. 30. A material with a higher hardness is A) Clay. B) Diamond. C) Rubber. D) None of the above. Show Answer Correct Answer: B) Diamond. 31. Secondary succession A) An ecological succession that begins in an area where no biotic community previously existed. B) The energy captured by producers in an ecosystem minus the energy producers respire. C) Type of succession that occurs in an area that was only partially destroyed by disturbances. D) Species that migrate into an ecosystem or are deliberately or accidentally introduced into an ecosystem by humans. Show Answer Correct Answer: C) Type of succession that occurs in an area that was only partially destroyed by disturbances. 32. The living organisms can be un-exceptionally distinguished from the non-living things on the basis of their ability for A) Responsiveness to touch. B) Interaction with the environment and progressive evolution. C) Reproduction. D) Growth and movement. Show Answer Correct Answer: B) Interaction with the environment and progressive evolution. 33. Growth in living organisms occurs by A) Division of cells. B) Increase in mass of the living structure. C) Accumulation of material by external agency. D) Both (a) and (b). Show Answer Correct Answer: D) Both (a) and (b). 34. Self-consciousness can be observed in A) Plants. B) Humans. C) Non-living things. D) None of the above. Show Answer Correct Answer: B) Humans. 35. Which of the following statements about the open ocean biome is not correct: A) The thermocline acts as a barrier to the mixing of deeper and surface waters. B) Polar oceans have a poorly developed thermocline. C) In polar regions, surface waters often have lower salinity than deeper waters. D) In tropical regions, surface waters often have lower salinity than deeper waters. Show Answer Correct Answer: D) In tropical regions, surface waters often have lower salinity than deeper waters. 36. Plants and animals that live in water are: A) Aquatic. B) Terrestrial. C) Aerial. D) None of the above. Show Answer Correct Answer: A) Aquatic. 37. Cause of mimicry is A) Isolation. B) Attack. C) Protection. D) Both b and c. Show Answer Correct Answer: D) Both b and c. 38. Range of tolerance A) The number of different species in a community (synonym for species diversity). B) The removal of trees faster than forests can replace themselves. C) The limits to the abiotic conditions that a species can tolerate. D) The relative proportion of different species in a given area. Show Answer Correct Answer: C) The limits to the abiotic conditions that a species can tolerate. 39. Which type of plant has a tender, green stem? A) Herb. B) Tree. C) Shrub. D) Vine. Show Answer Correct Answer: A) Herb. 40. Aquatic biomes cover roughly how much of the Earth's surface A) 25%. B) 10%. C) 50%. D) 75%. Show Answer Correct Answer: D) 75%. 41. Which is the highest taxonomic category? A) Kingdom. B) Species. C) Phylum. D) Class. Show Answer Correct Answer: A) Kingdom. 42. Fill in the blank: ..... is the variety of forests, deserts, grasslands, oceans, streams, lakes, and other biological communities interacting with one another and with their nonliving environment. A) Photosynthesis. B) Ecological diversity. C) Genetic engineering. D) Trophic level. Show Answer Correct Answer: B) Ecological diversity. 43. Why did the population of peppered moths in England change from light to dark after the Industrial Revolution? A) Light moths were easy to see against sooty trees and were eaten. B) Light moths were killed by soot. C) The birds that ate the dark moths were killed by soot. D) Dark moths were produced by industrial processes. Show Answer Correct Answer: A) Light moths were easy to see against sooty trees and were eaten. 44. Which one of the following animals is correctly matched with its particular taxonomic category? A) Housfly-Muska, order. B) Tiger-Tigris, species. C) Humans-Primata, class. D) Cuttlefish-Mollusca, class. Show Answer Correct Answer: B) Tiger-Tigris, species. 45. All living organism can be classified into different A) Living. B) Plants. C) Taxa. D) Animal. Show Answer Correct Answer: C) Taxa. 46. Who is known as the 'Birdman of India': A) Salim Ali. B) Jawaharlal Nehru. C) Mahatma Gandhi. D) None of the above. Show Answer Correct Answer: A) Salim Ali. 47. What is the weather in a particular location over a long period of time called? A) Climate. B) Weather. C) Precipitation. D) Climatogram. Show Answer Correct Answer: A) Climate. 48. Which of the following is a living thing? A) Soil. B) Human. C) Water. D) Air. Show Answer Correct Answer: B) Human. 49. Which country contains the Thar desert? A) India. B) Iran. C) Nepal. D) Pakistan. Show Answer Correct Answer: A) India. 50. If the GPP of an area is 25 kcal/m2/yr and the NPP of the same area is 15 kcal/m2/yr, what is the amount of energy that is lost to respiration? A) 10 kcal/m2/yr. B) 15 kcal/m2/yr. C) 40 kcal/m2/yr. D) 25 kcal/m2/yr. Show Answer Correct Answer: A) 10 kcal/m2/yr. 51. In the desert plant like ..... are to be found A) Mango. B) Lotus. C) Cactus. D) Pine. Show Answer Correct Answer: C) Cactus. 52. What organism takes nitrogen from the air and puts it into molecules that plants can then use? A) Chemoautotrophs. B) Nitrogen fixing bacteria. C) Herbivores. D) Secondary consumers. Show Answer Correct Answer: B) Nitrogen fixing bacteria. 53. Which plant has flowers that are pinkish-purple in color? A) Hibiscus. B) Common grass. C) Neem. D) Tulsi. Show Answer Correct Answer: A) Hibiscus. 54. Which is the odd one in the following series? A) Sapiens. B) Americana. C) Hemidactylus. D) Rotundus. Show Answer Correct Answer: C) Hemidactylus. 55. Occurs when a species is no longer found in an area it once inhabited but is still found elsewhere in the world A) Local extinction. B) Biomagnification. C) Global extinction. D) Mass extinction. Show Answer Correct Answer: A) Local extinction. 56. Trophic levels are represented by A) Squares. B) Lines. C) Circles. D) Pyramids. Show Answer Correct Answer: D) Pyramids. 57. The number of species in a community ..... A) Species richness. B) Species evenness. C) All the above. D) None of the above. Show Answer Correct Answer: A) Species richness. 58. In which of the following, growth is seen only up to certain age, but cell division in certain tissues to replace lost cells? A) Man. B) Crow. C) Tiger. D) All of these. Show Answer Correct Answer: D) All of these. 59. Complete the nutrient cycle:1. Plants use nutrients in the soil to grow. 2. Plants are eaten by animals. 3. Plants and animals die and fall on the ground. 4: A) They decompose and return to the soil. B) They are removed by the wind. C) They remain on the surface. D) They begin to regrow. Show Answer Correct Answer: A) They decompose and return to the soil. 60. Biology is concerned with A) Living organisms. B) Life as recorded by fossils. C) DNA. D) Biomass. Show Answer Correct Answer: A) Living organisms. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Biology Chapter 1 The Living World Quiz 1Class 11 Biology Chapter 1 The Living World Quiz 2Class 11 Biology Chapter 1 The Living World Quiz 3Class 11 Biology Chapter 1 The Living World Quiz 4Class 11 Biology Chapter 1 The Living World Quiz 5Class 11 Biology Chapter 1 The Living World Quiz 6Class 11 Biology Chapter 1 The Living World Quiz 7Class 11 Biology Chapter 1 The Living World Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books