This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 1 The Living World – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 1 The Living World Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Two taxonomic species are distinguished from each other by A) Their ability to exchange gene freely. B) Discontinuity in a set of correlated characters. C) Their failure to interbreed. D) Their similarity in morphological characters. Show Answer Correct Answer: C) Their failure to interbreed. 2. An organisms population growth is shaped by its reproductive pattern. Which combination of traits characterizes a rapid life history pattern (r-species)? A) Short life span, produces many offspring, small body size. B) Short life span, live in more stable environments, small body size. C) Long life span, produces many offspring, grows into adults slowly. D) Long life span, large body size, grows into adults slowly. Show Answer Correct Answer: A) Short life span, produces many offspring, small body size. 3. Illegally hunting or catching (game or fish) on land that is not one's own or in contravention of official protection is called which of the following? A) Migration. B) Photosynthesis. C) Poaching. D) Erosion. Show Answer Correct Answer: C) Poaching. 4. A complex hierarchy of plants and animals relying on each other for food A) Food Chain. B) Food Cycle. C) Nutrient Cycling. D) Food Web. Show Answer Correct Answer: D) Food Web. 5. The Amazon Basin of South America is the world's largest rainforest. Forest cover is rapidly decreasing due to logging and conversion of forest to agricultural lands. The loss of forests would most likely A) Increase the amount of atmospheric carbon dioxide. B) Decrease regional flooding. C) Decrease the amount of atmospheric nitrogen. D) Increase the amount of water vapor in the air due to increased transpiration. Show Answer Correct Answer: A) Increase the amount of atmospheric carbon dioxide. 6. ..... states that energy quality always decreases. A) 1st law of thermodynamics. B) 2nd law of thermodynamics. C) All the above. D) None of the above. Show Answer Correct Answer: B) 2nd law of thermodynamics. 7. Which feature helps ducks swim? A) Webbed feet. B) Wings. C) Tail. D) None of the above. Show Answer Correct Answer: A) Webbed feet. 8. Define the term:Control Group. A) A control group is the group in an experiment that does not receive the experimental treatment and is used for comparison. B) A control group is the group that always receives the experimental treatment. C) A control group is the group that collects data from other experiments. D) A control group is the group that designs the experiment. Show Answer Correct Answer: A) A control group is the group in an experiment that does not receive the experimental treatment and is used for comparison. 9. Who proposed binomial nomenclature? A) Linnaeus. B) Aristotle. C) Lamarck. D) Trivaranus. Show Answer Correct Answer: A) Linnaeus. 10. ..... is variability in the genetic make-up among individuals within a single species. A) Species diversity. B) Genetic diversity. C) Population density. D) Ecosystem diversity. Show Answer Correct Answer: B) Genetic diversity. 11. Classification of organisms based on evolutionary as well as genetic relationships is called A) Biosystematics. B) Numerical taxonomy. C) Phenetics. D) Cladistics. Show Answer Correct Answer: D) Cladistics. 12. How much energy is passed on to each trophic level in an energy pyramid? A) 10%. B) 50%. C) 80%. D) 90%. Show Answer Correct Answer: A) 10%. 13. Which of the following scenarios does the theory of island biogeography apply to?I. An island in the middle of the oceanII. A grove of trees surrounding by roadways and pavementIII. A marsh in the middle of a housing development A) I only. B) I and II. C) II and III. D) I, II, and III. Show Answer Correct Answer: D) I, II, and III. 14. ..... of water underground in aquifers. The water may return to the surface in springs or eventually seep into the oceans. A) Surface Runoff. B) Condensation. C) Precipitation. D) Groundwater flow. Show Answer Correct Answer: D) Groundwater flow. 15. Binomial nomenclature refers to A) Two names of a species. B) One specific and one local name of a species. C) Two words for the name of a species. D) Two life cycles of an organism. Show Answer Correct Answer: C) Two words for the name of a species. 16. Which terrestrial biome has the greatest net primary productivity? A) Savanna. B) Tropical rainforest. C) Desert. D) Taiga. Show Answer Correct Answer: B) Tropical rainforest. 17. Which technique is used to amplify a specific segment of DNA? A) Gel Electrophoresis. B) Polymerase Chain Reaction (PCR). C) DNA Sequencing. D) Gene Therapy. Show Answer Correct Answer: B) Polymerase Chain Reaction (PCR). 18. An evolutionary event in which a significant percentage of a population or species is killed or otherwise prevented from reproducing A) Differential reproduction. B) Mutation. C) Population bottleneck. D) Genetic resistance. E) Genetic recombination. Show Answer Correct Answer: C) Population bottleneck. 19. Habitat fragmentation A) Separation of species or populations so that they cannot interbreed and produce fertile offspring. B) Breakup of a habitat into smaller pieces, usually as a result of human activities. (verb). C) The range of genetic material present in a gene pool or population of a species. D) Succession following a disturbance that destroys a community without destroying the soil. Show Answer Correct Answer: B) Breakup of a habitat into smaller pieces, usually as a result of human activities. (verb). 20. The majority of marine life occurs: A) In the benthic zone. B) In the coral reefs. C) In the open ocean. D) In the neritic zone. Show Answer Correct Answer: D) In the neritic zone. 21. BIOLOGICAL SPECIES CONCEPT WAS GIVEN BY A) MILLER. B) JOHN RAY. C) LINNAEUS. D) LAMARCK. Show Answer Correct Answer: B) JOHN RAY. 22. Energy cannot be created or destroyed A) Population. B) 1st law of thermodynamics. C) 2nd law of thermodynamics. D) Food web. Show Answer Correct Answer: B) 1st law of thermodynamics. 23. The two major processes involved in the carbon cycle are A) Weathering and erosion. B) Photosynthesis and respiration. C) Evaporation and transpiration. D) Erosion and deposition. E) Fixation and denitrification. Show Answer Correct Answer: B) Photosynthesis and respiration. 24. If you have a lot of offspring but do not provide parental care you are described as ..... A) W-Selected. B) Q-selected. C) K-selected. D) R-selected. Show Answer Correct Answer: D) R-selected. 25. These species are the most abundant in an ecosystem. A) Invasive species. B) Dominant species. C) Keystone species. D) Alien species. Show Answer Correct Answer: B) Dominant species. 26. T or F:Succession increases biodiversity. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 27. Systematics deals with A) Nomenclature of new organisms. B) Evolutionary relationship between organisms. C) Identification of newly discovered organisms. D) All of these. Show Answer Correct Answer: D) All of these. 28. The framework system of classification in which various taxonomics categories are arranged in order of logical sequences is called A) Classification. B) Hierarchy. C) Taxon. D) Systematics. Show Answer Correct Answer: D) Systematics. 29. What do you mean by biological classification? A) A scientific way of identifying, naming and grouping of living organisms based on similarities and differences. B) A classification in which plants are grouped into different kingdoms. C) A branch of biology. D) None of the above. Show Answer Correct Answer: A) A scientific way of identifying, naming and grouping of living organisms based on similarities and differences. 30. Assertion:Scientific names for plants have been standardized through ICBN. Reason:Naming system which used three word format was given by Linnaeus. A) If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion. B) If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion. C) If Assertion is true but Reason is false. D) If both Assertion and Reason are false. Show Answer Correct Answer: C) If Assertion is true but Reason is false. 31. The removal of trees faster than forests can replace themselves. A) Colonization. B) Species richness. C) Speciation. D) Deforestation. Show Answer Correct Answer: D) Deforestation. 32. Lowest rank in organization A) Species. B) Class. C) Family. D) Order. Show Answer Correct Answer: A) Species. 33. Scientific term for category is A) Taxonomic category. B) Taxon. C) Rank. D) Taxa. Show Answer Correct Answer: D) Taxa. 34. What does a Liana do? A) Grow downwards off of tree branches. B) Grow on the high tree branches. C) Wrap around other trees. D) Allow water to easily drip onto the floor. E) Decomposes dead organisms. Show Answer Correct Answer: C) Wrap around other trees. 35. Mule, Tigon, Liger and Hinny A) Species. B) Hybrids. C) Subspecies. D) Categories. Show Answer Correct Answer: B) Hybrids. 36. A species form that supports an entire ecosystem. A) Keystone Species. B) Predators. C) Herbivores. D) Umbrella Species. Show Answer Correct Answer: A) Keystone Species. 37. What type of root system does a mustard plant have? A) Fibrous root system. B) Taproot system. C) Adventitious root system. D) None of the above. Show Answer Correct Answer: B) Taproot system. 38. Non living things need ..... A) A. air. B) B. water. C) C. nothing. D) None of the above. Show Answer Correct Answer: C) C. nothing. 39. A positive feedback loop occurs A) When feedback into a system increases a rate of response. B) When feedback into a system decreases a rate of response. C) When a system is in a steady state. D) When a system responds to a change by returning to its original state. Show Answer Correct Answer: A) When feedback into a system increases a rate of response. 40. What is a layer of rock or sediment that holds water? A) Natural spring. B) Well. C) Glacier. D) Aquifer. Show Answer Correct Answer: D) Aquifer. 41. .What is the effect of deforestation on the carbon cycle? A) Increase in the amount of CO2 in the atmosphere. B) Deforestation has no impact on the carbon cycle. C) Decrease in the amount of CO2 in the atmosphere. D) Increase in the amount of photosynthesis. Show Answer Correct Answer: A) Increase in the amount of CO2 in the atmosphere. 42. In an ecological interaction, commensalism can be represented as: A) + +. B) +-. C) . D) + 0. Show Answer Correct Answer: D) + 0. 43. Filamentous Algae reproduce through A) Spore formation. B) True regeneration. C) Fragmentation. D) Sexual reproduction. Show Answer Correct Answer: C) Fragmentation. 44. A book containing information as to the habitat climate description and index of plants found in a specific area A) Manual. B) Key. C) Flora. D) Monograph. Show Answer Correct Answer: C) Flora. 45. When dangerous toxins build up in organisms and are passed on from one level to the next in a food chain A) Exponential growth. B) Succession. C) Bioaccumulation. D) Equilibrium. Show Answer Correct Answer: C) Bioaccumulation. 46. In which populations does genetic drift most often occur? A) In small populations. B) In large populations. C) In marine populations. D) In terrestrial populations. Show Answer Correct Answer: A) In small populations. 47. Ecosystem resilience refers to: A) The ability to recover from external disturbances. B) The unchanging nature of ecosystems over time. C) A steady state of community biomass. D) Ecosystems with high diversity. Show Answer Correct Answer: A) The ability to recover from external disturbances. 48. Which of the following activities is most likely restricted within the AWNR reserve? A) Educational tours. B) Wildlife observation. C) Oil drilling and large-scale mining. D) Scientific research. Show Answer Correct Answer: C) Oil drilling and large-scale mining. 49. Atmospheric circulation moves heat: A) Across mid latitudes. B) From the equator to the poles. C) From the poles to the equator. D) From the Northern to the Southern Hemisphere. Show Answer Correct Answer: B) From the equator to the poles. 50. The term 'taxon'is used for A) The ranks of species and genus. B) The ranks up to phylum. C) The species epithet only. D) Any rank of taxonomic hierarchy. Show Answer Correct Answer: D) Any rank of taxonomic hierarchy. 51. ..... is a part of oceans, air, rocks, soil, and all living things. A) Carbon. B) Silver. C) Water. D) Nitrogen. Show Answer Correct Answer: A) Carbon. 52. An organism that eats herbivores and/or plant matter (eats producer) A) Consumer. B) Devourer. C) Producer. D) Decomposer. Show Answer Correct Answer: A) Consumer. 53. On islands, species richness increases with ..... and decreases with ..... A) Isolation, area. B) Isolation, shape. C) Area, shape. D) Area, isolation. E) Shape, isolation. Show Answer Correct Answer: D) Area, isolation. 54. A secondary consumer A) Eats primary consumers. B) Eats producers. C) Eats plants. D) None of the above. Show Answer Correct Answer: A) Eats primary consumers. 55. Growth occurs when the A) Ratio of anabolic processes and catabolic processes are equal. B) Ratio of anabolic processes is more than catabolic processes. C) Ratio of catabolic processes is more than anabolic processes. D) Anabolic processes and catabolic processes does not take place. Show Answer Correct Answer: B) Ratio of anabolic processes is more than catabolic processes. 56. Which sphere can be described as the solid exterior and interior of Earth? A) Biosphere. B) Hydrosphere. C) Geosphere. D) Atmosphere. Show Answer Correct Answer: C) Geosphere. 57. Which feature is used to group plants? A) The type of stem they have. B) The size of their flowers. C) The color of their leaves. D) The shape of their roots. Show Answer Correct Answer: A) The type of stem they have. 58. Fill in the blank:A ..... is a designated area used to protect sensitive landscape patches (e.g. wetlands, wildlife reserves) from negative external pressures. A) Transition zone. B) Core area. C) Buffer zone. D) Corridor. Show Answer Correct Answer: C) Buffer zone. 59. Which animal is known for walking and flying? A) Dog. B) Fish. C) Snake. D) Crow. Show Answer Correct Answer: D) Crow. 60. Binomial nomenclature was given by A) Carl Linnaeus. B) Charles Darwin. C) Gregor Mendel. D) Albert Einstein. Show Answer Correct Answer: A) Carl Linnaeus. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Biology Chapter 1 The Living World Quiz 1Class 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 8Class 11 Biology Chapter 1 The Living World Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books