This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 1 The Living World – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 1 The Living World Quiz 18 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following terrestrial biomes is found in equatorial latitudes with plentiful rainfall: A) Savanna. B) Tropical rainforest. C) Temperate rainforest. D) Taiga. Show Answer Correct Answer: B) Tropical rainforest. 2. If you are an organism whose realized niche is to break down organic matter from the ecosystem into nutrients, you are probably a ..... A) Herbivore. B) Producer. C) Primary consumer. D) Decomposer. Show Answer Correct Answer: D) Decomposer. 3. Characteristics of organisms belonging to Kingdom Monera are- A) Prokaryotic, multicellular, generally movable. B) Eukaryotic, unicellular, generally non-movable. C) Eukaryotic, unicellular, generally non-movable. D) All of the above. Show Answer Correct Answer: B) Eukaryotic, unicellular, generally non-movable. 4. This is the total amount of organisms that are able to live and thrive in an ecosystem given the number of resources available to them A) Biodiversity. B) Community. C) Carrying capacity. D) Equilibrium. Show Answer Correct Answer: C) Carrying capacity. 5. In an evolutionary sense, an individual organism has high fitness if it A) Reproduces more successfully than other individuals. B) Has a large number of acquired traits. C) Can run long distances without becoming exhausted. D) Evolves into another organism rather than becoming extinct. Show Answer Correct Answer: A) Reproduces more successfully than other individuals. 6. Trees that have cones are called A) Mangrove tree. B) Deciduous tree. C) Coniferous trees. D) Evergreen tree. Show Answer Correct Answer: C) Coniferous trees. 7. This is the breaking down of glucose into energy, when there's no oxygen to help A) Photosynthesis. B) Acid precipitation. C) Fermentation. D) Cellular respiration. Show Answer Correct Answer: C) Fermentation. 8. What type of venation do banana leaves exhibit? A) Random venation. B) No venation. C) Parallel venation. D) Reticulate venation. Show Answer Correct Answer: C) Parallel venation. 9. Which biome is has vast areas of pine forest? A) Taiga. B) Polar. C) Alpine. D) Tundra. Show Answer Correct Answer: A) Taiga. 10. What type of blood do reptiles have? A) Mixed-blooded. B) Warm-blooded. C) Hot-blooded. D) Cold-blooded. Show Answer Correct Answer: D) Cold-blooded. 11. Community of biotic and abiotic factors and its relationship is A) Ecosystem. B) Classification. C) Taxonomy. D) Biodiversity. Show Answer Correct Answer: A) Ecosystem. 12. Temperature, light, air, water, and soil are all ..... parts of the environment. A) Dead. B) Biotic. C) Scavenged. D) Abiotic. Show Answer Correct Answer: D) Abiotic. 13. The female gamete of a plant contains 10 chromosomes. If the same plant root cell divides, then the ploidy, chromosome number, and number of chromatids respectively in G2 phase are: A) 4n/20/40. B) N/10/20. C) Insufficient information. D) 2n/20/40. Show Answer Correct Answer: D) 2n/20/40. 14. Which of the following industries is most important to Alaska's economy besides fishing? A) Software development. B) Textile manufacturing. C) Oil and gas extraction. D) Automobile production. Show Answer Correct Answer: C) Oil and gas extraction. 15. This hypothesis says that intermediate disturbances-not too big and not too little-are ideal. A) Build or rebuild soils. B) Long Disturbance Hypothesis. C) Intermediate Disturbance Hypothesis. D) Small Disturbance Hypothesis. Show Answer Correct Answer: C) Intermediate Disturbance Hypothesis. 16. ..... is green in color due to the presence of chlorophyll. (In a cactus) A) Feathers. B) Spines. C) Leaves. D) Stem. Show Answer Correct Answer: D) Stem. 17. Which of the following is NOT a correct hierachial order A) ( c) class, order, family. B) (a) class, family, genus. C) (d) family, class, order. D) (b) phylum, order, family. Show Answer Correct Answer: C) (d) family, class, order. 18. A group of plants and animals with similar traits of any rank is A) A phylum. B) A kingdom. C) A taxon. D) A species. Show Answer Correct Answer: C) A taxon. 19. What is the role of trees in the ecosystem as mentioned in the text? A) To compete with other plants. B) To provide shade and fruits for others. C) To absorb all water. D) To grow tall and block sunlight. Show Answer Correct Answer: B) To provide shade and fruits for others. 20. . Assertion:Botanical Gardens are ex-situ conservation strategy of plants. Reason:National botanical Garden is situated at Howrah. 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. 21. Which animal is correctly matched with its movement and body part used? A) Fish-Jumping-Legs. B) Ant-Flying-Wings. C) Housefly-Flying and walking-Wings and legs. D) Goat-Flying-Wings. Show Answer Correct Answer: C) Housefly-Flying and walking-Wings and legs. 22. A biome has a GPP of 9 kg C/m2/year and the rate of cellular respiration is 4.8 kg C/m2/year. What is the NPP? A) 4.8 kg C/m2/year. B) 5.0 kg C/m2/year. C) 3.2 kg C/m2/year. D) 4.2 kg C/m2/year. E) 5.2 kg C/m2/year. Show Answer Correct Answer: D) 4.2 kg C/m2/year. 23. What is accretion? A) Accretion is internal growth caused by cell division. B) Accretion is increasing in height of nonliving organism. C) Accretion is the process in which nonliving articles increases its size by accumulation of external substances on the surface. D) All of the above. Show Answer Correct Answer: C) Accretion is the process in which nonliving articles increases its size by accumulation of external substances on the surface. 24. What is one reason why it can be difficult to compare different groups of invertebrates? A) Invertebrates have no backbone. B) Invertebrates vary broadly and have many different characteristics. C) Invertebrates live in water. D) Invertebrates are all the same size. Show Answer Correct Answer: B) Invertebrates vary broadly and have many different characteristics. 25. Dental formula of human being is A) I$_{2}$, C$_{2}$, P$_{1}$, M$_{3}$. B) I$_{2}$, C$_{2}$, P$_{3}$, M$_{1}$. C) I$_{2}$, C$_{1}$, P$_{2}$, M$_{3}$. D) I$_{3}$, C$_{1}$, P$_{2}$, M$_{2}$. Show Answer Correct Answer: C) I$_{2}$, C$_{1}$, P$_{2}$, M$_{3}$. 26. This is the build-up of algae in the water because of the phosphorus in the extra fertilizer that drains in. A) Deforestation. B) Eutrophication. C) Fermentation. D) Urban sprawl. Show Answer Correct Answer: B) Eutrophication. 27. Which one is not a Taxonomical Aids? A) ( b) Botanical Gardens. B) ( c) Museum. C) (a) Herbarium. D) ( d) kitchen garden. Show Answer Correct Answer: D) ( d) kitchen garden. 28. Organisms use different resources in the same habitat, and in this way avoid competition. This is referred to as A) The Law of Tolerance. B) Hunting and gathering. C) A predator-prey relationship. D) Resource partitioning. Show Answer Correct Answer: D) Resource partitioning. 29. No two species can occupy the same niche in the same habitat at the same time A) Competitive exclusion principle. B) Bottle neck effect. C) Secondary succession. D) Non-native species. Show Answer Correct Answer: A) Competitive exclusion principle. 30. A relationship between two organisms in which one organism benefits and the other is unaffected A) Primary succession. B) Bottleneck effect. C) Experimental Design. D) Commensalism. Show Answer Correct Answer: D) Commensalism. 31. ..... is the process by which water on the ground surface enters the soil ..... rate in soil science is a measure of the rate at which soil is able to absorb rainfall or irrigation. A) Condensation. B) Percolation. C) Deposition. D) Infiltration. Show Answer Correct Answer: D) Infiltration. 32. One of the most important functions of botanical gardens is that: A) They provide a beautiful area for recreation. B) One can observe tropical plants there. C) They allow ex situ conservation of germplasm. D) They provide the natural habitat for wild life. Show Answer Correct Answer: C) They allow ex situ conservation of germplasm. 33. This is the branch of biology that deals with the relations of organisms to one another and to their physical surroundings. A) Ecology. B) Psychology. C) Chemistry. D) Physics. Show Answer Correct Answer: A) Ecology. 34. This cycle includes:nitrogen gas being changed to ammonium from bacteria so plants can use it, then it goes back in the atmosphere when it is released from dead animals/plants A) Water cycle. B) Phosphorus cycle. C) Nitrogen cycle. D) Carbon cycle. Show Answer Correct Answer: C) Nitrogen cycle. 35. Ecosystem Service:Ecosystems and biodiversity provide many plants used as traditional medicines as well as providing the raw materials for the pharmaceutical industry. A) Supporting. B) Provisioning. C) Cultural. D) Regulating. Show Answer Correct Answer: B) Provisioning. 36. Highest species richness will be found on ..... and ..... islands and less species richness will be found on ..... and ..... islands. A) Small and near; large and far. B) Large and far; small and near. C) Large and near; small and far. D) Small and far; large and near. Show Answer Correct Answer: C) Large and near; small and far. 37. Ecosystem Service:Some habitats have an exceptionally high number of species which makes them more genetically diverse than others and are known as 'biodiversity hotspots.' A) Provisioning. B) Cultural. C) Regulating. D) Supporting. Show Answer Correct Answer: D) Supporting. 38. Which of the following statements about levels of biodiversity is correct? A) A population with high genetic biodiversity is better able to respond to environmental stressors. B) Global hotspots are areas where species diversity is thriving due to habitat restoration. C) A narrow distribution of habitats leads to an increase in species diversity. D) Genetic biodiversity is a measure of the total number of genes in a community. Show Answer Correct Answer: A) A population with high genetic biodiversity is better able to respond to environmental stressors. 39. Historically described as the final stage of succession (looks different in different biomes) A) Ecological succession. B) Pioneer species. C) Island biogeography. D) Climax community. Show Answer Correct Answer: D) Climax community. 40. Tertiary consumers A) Eat the primary consumer. B) Eat plants and animals. C) Consume the producer. D) Eat the secondary consumer. Show Answer Correct Answer: D) Eat the secondary consumer. 41. The roots that form a bunch and are similar in size are called: A) Taproots. B) Fibrous roots. C) Aerial roots. D) Branch roots. Show Answer Correct Answer: B) Fibrous roots. 42. Identify the best fit for the phrase below ..... "All the members of the same species." A) Community. B) Cell. C) Ecosystem. D) Population. Show Answer Correct Answer: D) Population. 43. All biotic and abiotic (living and nonliving) things in an area is called an ..... A) Ecosystem. B) Biome. C) Community. D) Population. Show Answer Correct Answer: A) Ecosystem. 44. The order of biotic interactions and relationships in an ecosystem:organism, population, community, ecosystem A) Population. B) Ecosystem. C) Ecological footprint. D) Ecological hierarchy. Show Answer Correct Answer: D) Ecological hierarchy. 45. Bacteria based on shape include all EXCEPT: A) Mycelia. B) Cocci. C) Spirilla. D) Bacilli. Show Answer Correct Answer: A) Mycelia. 46. A species that influences the survival of many other species is known as a ..... A) Threatened species. B) Fossil. C) Keystone species. D) Endangered species. Show Answer Correct Answer: C) Keystone species. 47. ..... are made of water vapor that condenses in the troposphere. A) Dew. B) Evaporation. C) Transpiration. D) Clouds. Show Answer Correct Answer: D) Clouds. 48. Linnaeus evolved a system of nomenclature ..... is: A) Binomial nomenclature. B) Vernacular nomenclature. C) Polynomial nomenclature. D) Trinomial nomenclature. Show Answer Correct Answer: A) Binomial nomenclature. 49. Why are hummingbirds good examples of showing how ecosystems are connected? A) They aren't. B) They migrate from one area to another and rely on numerous ecosystems for food and shelter. C) They can live in both aquatic and terrestrial ecosystems. D) They are found in all gardens. Show Answer Correct Answer: B) They migrate from one area to another and rely on numerous ecosystems for food and shelter. 50. The occupation of a habitat or territory by a biological community or of an ecological niche by a single population of a species. A) Colonization. B) Speciation. C) Overgrazing. D) Biomagnification. Show Answer Correct Answer: A) Colonization. 51. A biological ..... is a group of interbreeding populations that is reproductively isolated from other groups. A) Phylogeny. B) Family. C) Hybrid. D) Species. Show Answer Correct Answer: D) Species. 52. Which pathway shows how atmospheric nitrogen is converted into the nitrogen compounds that plants need? A) Atmospheric nitrogen $\rightarrow$ denitrifying bacteria $\rightarrow$ plants. B) Atmospheric nitrogen $\rightarrow$ plants. C) Atmospheric nitrogen $\rightarrow$ nitrogen-fixing bacteria and other soil bacteria $\rightarrow$ plants. D) Atmospheric nitrogen $\rightarrow$ animals $\rightarrow$ denitrifying bacteria $\rightarrow$ plants. Show Answer Correct Answer: C) Atmospheric nitrogen $\rightarrow$ nitrogen-fixing bacteria and other soil bacteria $\rightarrow$ plants. 53. Human waste is often dumped in the ocean. Microbial organisms in marine ecosystems can break down organic waste into less harmful components. This is an example of A) An intrinsic value. B) An ecosystem provision. C) A cultural service. D) A regulating service. Show Answer Correct Answer: D) A regulating service. 54. What are some examples of cultural practices that promote diversity? A) Traditional cooking classes. B) Local sports tournaments. C) Examples of cultural practices that promote diversity include multicultural festivals, language exchange programs, and inclusive educational curricula. D) Solo art exhibitions. Show Answer Correct Answer: C) Examples of cultural practices that promote diversity include multicultural festivals, language exchange programs, and inclusive educational curricula. 55. A severe storm that involves strong winds and forms over warm water is: A) Tornado. B) Hurricane. C) Blizzard. D) Thunderstorm. Show Answer Correct Answer: B) Hurricane. 56. What is the unique feature of each bird's chirp mentioned in the text? A) They are all the same. B) Birds chirp only at night. C) Each bird has a unique chirp. D) Birds do not chirp. Show Answer Correct Answer: C) Each bird has a unique chirp. 57. Background extinction A) Separation of species or populations so that they cannot interbreed and produce fertile offspring. B) Extinction caused by slow and steady process of natural selection. C) A species can no longer be found anywhere. D) An ecological succession that begins in an area where no biotic community previously existed. Show Answer Correct Answer: B) Extinction caused by slow and steady process of natural selection. 58. Fill in the blank: ..... is any genetically controlled structural, physiological, or behavioral characteristic that helps an organism survive and reproduce under a given set of environmental conditions. A) Mutation. B) Extinction. C) Adaptation. D) Migration. Show Answer Correct Answer: C) Adaptation. 59. The destruction of vegetation when too many grazing animals feed too long on a specific area of pasture or rangeland and exceed carrying capacity of the rangeland is the definition of which of the following terms? A) Desertification. B) Overgrazing. C) Irrigation. D) Afforestation. Show Answer Correct Answer: B) Overgrazing. 60. The use of an ecosystem such as a forest for a variety of purposes such as timber harvesting, wildlife habitat, watershed protection, and recreation is defined as which of the following? A) Multiple-use land. B) Single-use land. C) Protected land. D) Urban land. Show Answer Correct Answer: A) Multiple-use land. ← 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