This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 1 The Living World – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 1 The Living World Quiz 22 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Succession following a disturbance that destroys a community without destroying the soil A) Secondary succession. B) Reproductive isolation. C) Ecosystem diversity. D) Primary succession. Show Answer Correct Answer: A) Secondary succession. 2. One of the following objects was once a living thing. This one is: A) Bowl. B) Plastic ruler. C) Table. D) Mug. Show Answer Correct Answer: C) Table. 3. This includes all the different varieties of species and organisms within an ecosystem, which need to be protected A) Community. B) Mutualism. C) Population. D) Biodiversity. Show Answer Correct Answer: D) Biodiversity. 4. As the population of prey decreases, the population of the predator which eats it will ..... A) Increase. B) Decrease. C) Remain Constant. D) None of the above. Show Answer Correct Answer: B) Decrease. 5. Species that are nonnative and harmful to an ecosystem A) Indicator species. B) Keystone species. C) Nonnative species. D) Invasive species. Show Answer Correct Answer: D) Invasive species. 6. In ..... of higher animals and plants ..... and ..... are mutually ..... events. A) All, cell division, replacement, dependent. B) Majority, growth, reproduction, exclusive. C) All, growth, cell division, dependent. D) Majority, cell division, replacement, exclusive. Show Answer Correct Answer: B) Majority, growth, reproduction, exclusive. 7. A producer always A) Eats other producers. B) Is a herbivore. C) Is a plant. D) Gets energy from the sun. Show Answer Correct Answer: D) Gets energy from the sun. 8. Ecosystems that are on land A) Aquatic ecosystems. B) Terrestrial ecosystems. C) Biosphere. D) Lithosphere. Show Answer Correct Answer: B) Terrestrial ecosystems. 9. Which of the following is the correct scientific name of wheat derived by binomial nomenclature? A) Zea mays. B) Triticum Vulgare. C) Oryza sativa. D) Triticum aestivum. Show Answer Correct Answer: D) Triticum aestivum. 10. What is the formula for atmospheric nitrogen? A) N$_{2}$. B) NO$_{3}$. C) NH$_{3}$. D) N. Show Answer Correct Answer: A) N$_{2}$. 11. Which of the following describes the role of nitrogen-fixing bacteria in the nitrogen cycle? Nitrogen-fixing bacteria convert ..... A) Proteins into nitrates. B) Ammonia into proteins. C) Nitrogen gas into ammonium ions. D) Nitrates intro nitrogen gas. Show Answer Correct Answer: C) Nitrogen gas into ammonium ions. 12. ..... can also fix nitrogen gas for plants. A) Viruses. B) Animals. C) Lightning. D) People. Show Answer Correct Answer: C) Lightning. 13. This biome has the highest net primary productivity, in part because of consistently warm temperatures and abundant sunlight. A) Temperate grassland. B) Taiga. C) Tropical rainforest. D) Tundra. Show Answer Correct Answer: C) Tropical rainforest. 14. Primary producers in a lake ecosystem store approximately 25000 kcal of energy in their biomass. Which of the following identifies the most likely amount of energy available to a tertiary consumer in this ecosystem? A) 25 kcal. B) 25000 kcal. C) 2500 kcal. D) 250 kcal. Show Answer Correct Answer: A) 25 kcal. 15. A reduction in the genetic diversity of a population caused by a reduction in its size. A) Founder effect. B) Gene flow. C) Genetic drift. D) Bottleneck effect. Show Answer Correct Answer: D) Bottleneck effect. 16. Beginning at the lowest trophic level, arrange the following food chain found on the Serengeti Plain of Africa in the correct sequence. A) Shrubs-decomposers-gazelles-cheetahs. B) Shrubs-gazelles-cheetahs-decomposers. C) Gazelles-decomposers-cheetahs-shrubs. D) Decomposers-cheetahs-shrubs-gazelles. Show Answer Correct Answer: B) Shrubs-gazelles-cheetahs-decomposers. 17. In what way are humans most impacting the biodiversity of ecosystems around the world? A) We are putting too many organisms in zoos or keeping them as pets. B) We are destroying the habitats of a large number of species. C) We are increasing biodiversity by breeding new species. D) Recreational hunting. Show Answer Correct Answer: B) We are destroying the habitats of a large number of species. 18. Which of the following categories possesses maximum number of related characters? A) Phylum. B) Species. C) Order. D) Class. Show Answer Correct Answer: B) Species. 19. Which of the following plants has parallel venation? A) Hibiscus. B) Banana. C) Rose. D) Tulsi. Show Answer Correct Answer: B) Banana. 20. ..... brings phosphorous into our waterways ..... A) Precipitation. B) Runoff. C) Condensation. D) Transpiration. Show Answer Correct Answer: B) Runoff. 21. The smallest unit of classification is A) Species. B) Phylum. C) Genus. D) Family. Show Answer Correct Answer: A) Species. 22. This is all of the lifeforms and living areas on earth A) Biosphere. B) Hydrosphere. C) Atmosphere. D) Lithosphere. Show Answer Correct Answer: A) Biosphere. 23. Have a very broad niche (Can live in a variety of ecosystems and eat a variety of food) A) Generalist species. B) Specialist species. C) Keystone species. D) Indicator species. Show Answer Correct Answer: A) Generalist species. 24. Primary succession would occur in all the following areas except ..... A) Bare rock. B) After a volcanic eruption. C) Sandy dunes. D) An open field. Show Answer Correct Answer: D) An open field. 25. About what share of Alaska's mineral wealth is in gold? A) Around twenty percent. B) Around five percent. C) Around half of it. D) Nearly all of it. Show Answer Correct Answer: A) Around twenty percent. 26. Which of the following is considered a wetland? A) Swamps. B) Marshes. C) Bogs. D) All of the above. Show Answer Correct Answer: D) All of the above. 27. Two animals which are the members of the same order must also be the members of the same ..... A) Class. B) Genus. C) Species. D) Family. Show Answer Correct Answer: A) Class. 28. Three different genera Solanum, Petunia & Dhatura are placed in family A) Solanaceae. B) Poaceae. C) Anacardiaceae. D) Hominidae. Show Answer Correct Answer: A) Solanaceae. 29. Which describes all of the water on Earth, solid, liquid, and gas? A) Biosphere. B) Geosphere. C) Atmosphere. D) Hydrosphere. Show Answer Correct Answer: D) Hydrosphere. 30. Plants with parallel venation usually have which type of roots? A) Deep root. B) Fibrous. C) Climbing root. D) Taproot. Show Answer Correct Answer: B) Fibrous. 31. Tundra is found in the Arctic Circle A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 32. What is a community of plants and animals that interact with each other and their physical environment? A) Biome. B) Ecosystem. C) Habitat. D) Food Web. Show Answer Correct Answer: B) Ecosystem. 33. Which is called Darwin of 20th century? A) Ernst mayr. B) R H whittaker. C) A. Einstein. D) F. Darwin. Show Answer Correct Answer: A) Ernst mayr. 34. The technical names of organisms are given in the ..... language A) Latin. B) Greek. C) French. D) English. Show Answer Correct Answer: A) Latin. 35. Would salt water or fresh water be expected to have a greater concentration of dissolved oxygen? A) Salt water. B) Fresh water. C) They would be equal. D) None of the above. Show Answer Correct Answer: B) Fresh water. 36. Who is Maniram chacha? A) A student from the community. B) A scientist at the Research Laboratory. C) An expert in mimicking bird calls. D) A teacher at the school. Show Answer Correct Answer: C) An expert in mimicking bird calls. 37. Assertion:The science of classifiying organisms is called taxonomy.Reason:Systematics and taxonomy have same meaning. A) If both Assertion and Reason are true and Reason is the correct explanation of Assertion. B) If both Assertion and Reason are true but Reason is not the correct explanation of 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. 38. Which of the following would count as a disruption to an ecosystem? A) Change in temperature. B) Natural disaster. C) Disease. D) All of the these. Show Answer Correct Answer: D) All of the these. 39. The differences among a species, like different bird beaks, are called A) Variations. B) Traits. C) Theories. D) Genes. Show Answer Correct Answer: A) Variations. 40. Which of the following are functions of wetlands? A) Absorb pollutants. B) Provide habitat for many animals. C) Control floods by acting as a sponge for excess water. D) All of the above. Show Answer Correct Answer: D) All of the above. 41. What of the following is NOT a way that people add carbon to the environment? A) Burning fossil fuels. B) Deforestation. C) Littering. D) None of the above. Show Answer Correct Answer: C) Littering. 42. Biomass refers to A) Chemical Energy. B) Light Energy. C) Amount of living tissue at the tropic level. D) Rank in the feeding heirarchy. Show Answer Correct Answer: C) Amount of living tissue at the tropic level. 43. Who first proposed binomial nomenclature as a way of classifying organisms? A) Charles Darwin. B) Henry Groseclose. C) Carl Linnaeus. D) Carl's Jr. Show Answer Correct Answer: C) Carl Linnaeus. 44. If a farmer asked the ethical question "What are the long-term effects of creating crops that are immune to pesticides and diseases?" what topic would they discussing? A) GMOs. B) DNA fingerprinting. C) Cloning. D) Gene therapy. Show Answer Correct Answer: A) GMOs. 45. Naja naja is the scientific name of ..... A) The Indian bird. B) The Indian Cobra. C) The Indian Tiger. D) The Indian lion. Show Answer Correct Answer: B) The Indian Cobra. 46. An ecological model comparing the total amount of dried mass of each trophic level is call a pyramid of- A) Numbers. B) Organisms. C) Biomass. D) Energy. Show Answer Correct Answer: C) Biomass. 47. In which habitat would you find whales and colourful fish? A) Forest. B) Ocean. C) Desert. D) Grassland. Show Answer Correct Answer: B) Ocean. 48. "X" being a higher category is the assemblage of families which exhibit a few "Y" characters. The "Z" characters are less in a number as compared to different genera included in a family. Identify "X", "Y", and "Z" . A) X-Genus; Y-Similar; Z-Different. B) X-Class; Y-Different; Z-Different. C) X-Order; Y-Similar; Z-Similar. D) X-Species; Y-Different; Z-Similar. Show Answer Correct Answer: C) X-Order; Y-Similar; Z-Similar. 49. Of the following, which occupies the lowest trophic level? A) Spider. B) Bat. C) Tiger. D) Rabbit. Show Answer Correct Answer: D) Rabbit. 50. The process of classification is called A) Nomenclature. B) Taxonomy. C) Systematics. D) Classification. Show Answer Correct Answer: B) Taxonomy. 51. Fertilizers used to improve lawns and gardens may interfere with the equilibrium of an ecosystem because they A) Cause mutations in all plants. B) Cannot be absorbed by roots. C) Can be carried into local water supplies. D) Cause atmospheric pollution. Show Answer Correct Answer: C) Can be carried into local water supplies. 52. The family o wheat is A) Saplidales. B) Poales. C) Diptera. D) Poaceae. Show Answer Correct Answer: D) Poaceae. 53. The process by which anything is grouped into convenient categories based on some easily observable characters is called A) Systematics. B) Taxonomy. C) Classification. D) Nomenclature. Show Answer Correct Answer: C) Classification. 54. What are ecosystem services and why are they vital for human survival? A) Ecosystem services are benefits from natural ecosystems that are essential for human survival. B) Ecosystem services are harmful effects of human activities on nature. C) Ecosystem services are products sold in markets that are not related to nature. D) Ecosystem services are only beneficial for wildlife and not humans. Show Answer Correct Answer: A) Ecosystem services are benefits from natural ecosystems that are essential for human survival. 55. Which environmental concern was raised about oil drilling in Alaska during the Trump administration? A) Increase in volcanic activity. B) Decrease in gold mining operations. C) Potential harm to caribou and polar bear habitats. D) Loss of agricultural land. Show Answer Correct Answer: C) Potential harm to caribou and polar bear habitats. 56. Net primary productivity A) The total amount of solar energy that producers in an ecosystem capture via photosynthesis over a given amount of time. B) Type of succession that occurs in an area that was only partially destroyed by disturbances. C) The number and relative abundance of species in a biological community. D) The energy captured by producers in an ecosystem minus the energy producers respire. Show Answer Correct Answer: D) The energy captured by producers in an ecosystem minus the energy producers respire. 57. What is a major transportation challenge faced by remote communities in Alaska? A) Excessive ferry connections. B) Overcrowded highways. C) Frequent subway delays. D) Lack of paved roads and reliance on air travel. Show Answer Correct Answer: D) Lack of paved roads and reliance on air travel. 58. The process of atmospheric nitrogen being converted into a usable form is called ..... A) Ammonification. B) Assimilation. C) Nitrification. D) Nitrogen fixation. Show Answer Correct Answer: D) Nitrogen fixation. 59. Difference between virus and viroid A) Absence of protein coat in viroid but present in virus. B) Presence of low molecular weight RNA in virus but absent in viroid. C) Both a and b. D) None of the above. Show Answer Correct Answer: A) Absence of protein coat in viroid but present in virus. 60. The part of earth that includes the crust, rock, landforms and ground A) Lithosphere. B) Biosphere. C) Hydrosphere. D) Atmosphere. Show Answer Correct Answer: A) Lithosphere. ← 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