This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A species that is used to represent cause, act of preservation, or foundation is known as what type of species? A) Flagship species. B) Invasive species. C) Exotic species. D) Keystone species. Show Answer Correct Answer: A) Flagship species. 2. A species that is NOT native to a particular region is called A) Extraordinary. B) Natural. C) Endemic. D) Invasive. Show Answer Correct Answer: D) Invasive. 3. Which one is a nonrenewable resource. A) Clean Water. B) Fossil fuel. C) Solar energy. D) Plants. Show Answer Correct Answer: B) Fossil fuel. 4. What is the example of Ex situ? A) Taman negara. B) Jungle. C) Botanical garden. D) None of the above. Show Answer Correct Answer: C) Botanical garden. 5. In danger of becoming endangered A) Extinct. B) Keystone. C) Threatened. D) Biodiversity. Show Answer Correct Answer: C) Threatened. 6. Water and food are examples of ..... for populations A) Emigration. B) Limiting factor. C) Carrying capacity. D) Immigration. Show Answer Correct Answer: B) Limiting factor. 7. According the Alexander von Humboldt: A) Species richness increases with increasing area, but only up to limit. B) There is no relationship between species richness and area explored. C) Species richness goes on increasing with increasing area of exploration. D) Species richness decreases with increasing area of exploration. Show Answer Correct Answer: A) Species richness increases with increasing area, but only up to limit. 8. Separation of an ecosystem into small pieces A) Destruction of habitat. B) Pollution of habitat. C) Fragmentation of habitat. D) Disruption of habitat. Show Answer Correct Answer: C) Fragmentation of habitat. 9. Define habitat fragmentation. A) The excessive use of a species that has economic value. B) All species dying in one area. C) The different environmental conditions that occur along the boundaries of an ecosystem. D) The separation of an ecosystem into small areas. Show Answer Correct Answer: D) The separation of an ecosystem into small areas. 10. A mass extinction is ..... A) A benefit to the environment. B) The introduction of exotic species. C) The extinction of many species in a short time period. D) A rapid increase in biodiversity. Show Answer Correct Answer: C) The extinction of many species in a short time period. 11. The term diversity means A) Similarity. B) Variety. C) All the above. D) None of the above. Show Answer Correct Answer: B) Variety. 12. Earth's various organisms appear to be A) Mostly small vertebrates. B) Largely known to scientist. C) Concentrated in central biomes. D) Evolving at an unprecedented rate. Show Answer Correct Answer: C) Concentrated in central biomes. 13. Which of the following is considered a natural resource? A) Plastic. B) Clean water. C) Steel. D) Concrete. Show Answer Correct Answer: B) Clean water. 14. How can local communities contribute to conservation efforts? A) Local communities can ignore environmental issues. B) Local communities can only rely on government intervention. C) Local communities can engage in clean-ups, habitat restoration, education, advocacy, and collaboration with conservation groups. D) Local communities should focus solely on economic growth. Show Answer Correct Answer: C) Local communities can engage in clean-ups, habitat restoration, education, advocacy, and collaboration with conservation groups. 15. Discuss a real-world example of the "Tragedy of the Commons" and its impact on biodiversity. A) The overfishing of oceans leading to the decline of fish populations. B) The construction of dams to generate hydroelectric power. C) The use of pesticides in agriculture to increase crop yield. D) The planting of trees in urban areas to improve air quality. Show Answer Correct Answer: A) The overfishing of oceans leading to the decline of fish populations. 16. Which of the following regions is very rich in biodiversity? A) Equatorial region. B) Temperate region. C) Tropical region. D) Polar region. Show Answer Correct Answer: C) Tropical region. 17. Where are many critical biodiversity hotspots located? A) Cities and developed areas of the world. B) Islands, tropical rainforests, and coastal areas. C) Desert and polar environments. D) All are correct. Show Answer Correct Answer: B) Islands, tropical rainforests, and coastal areas. 18. Which areas of the United States represent ecosystems with high levels of biodiversity? A) Coastal California. B) Hawaiian Islands. C) Florida Everglades. D) All of the above. Show Answer Correct Answer: D) All of the above. 19. Among animals, the most species rich taxonomic groupis A) Crustacean. B) Fungi. C) Vertebrates. D) Invertebrates. Show Answer Correct Answer: D) Invertebrates. 20. Which of the following is a strategy for species conservation? A) Increasing habitat fragmentation. B) Introducing invasive species to new environments. C) Protecting natural habitats and creating wildlife reserves. D) Reducing the genetic diversity of endangered species. Show Answer Correct Answer: C) Protecting natural habitats and creating wildlife reserves. 21. Read the following statements and select the correct answers.Statement I:Out of every 10 animals on this planet, 7 are insects.Statements II:The number of fungi species in the world is more than the combined total of the species of fishes, amphibians, reptiles and mammals. A) Only statement I is incorrect. B) Only statement II is incorrect. C) Both the statements are incorrect. D) Both the statements are correct. Show Answer Correct Answer: D) Both the statements are correct. 22. The International Union for Conservation of Nature and Natural Resources (IUCN) A) Is known for trying to save endangered species through dramatic, attention-grabbing protests. B) Is an organization of multinational corporations united to fight conservation efforts. C) Is collaboration of about 200 governmental agencies and 700 private conservation groups from around the world. D) Was disbanded after Earth Summit of 1992. Show Answer Correct Answer: C) Is collaboration of about 200 governmental agencies and 700 private conservation groups from around the world. 23. The arguments for conserving biodiversity can be grouped into three categories:narrowly utilitarian, broadly utilitarian, and ..... A) Ecological. B) Ethical. C) Economic. D) Aesthetic. Show Answer Correct Answer: B) Ethical. 24. This supports the conservation and sustainable development of ecologically unique areas visited for pleasure. A) Ecotourism. B) Tourism. C) Ecological conservation. D) Genetic Conservation. Show Answer Correct Answer: A) Ecotourism. 25. Which of the following is NOT an example of an invasive weed species mentioned in the text? A) Lantana. B) Water hyacinth (Eichhornia). C) Rose. D) Carrot grass (Parthenium). Show Answer Correct Answer: C) Rose. 26. The biodiversity is divided into how many levels? A) 4. B) 3. C) 5. D) 2. Show Answer Correct Answer: B) 3. 27. Which group of organism is responsible for about 80% of our medicines we use today? A) Vertebrates. B) Fungi. C) Insects. D) Plants. Show Answer Correct Answer: D) Plants. 28. Events when extinction rates far exceed the normal background rate A) Background Extinction. B) Mass Extinction. C) General Extinction. D) None of the above. Show Answer Correct Answer: B) Mass Extinction. 29. How can individuals help in conservation efforts? A) Increase plastic use. B) Support deforestation initiatives. C) Reduce waste, support sustainable practices, volunteer, educate others, and advocate for conservation policies. D) Ignore environmental issues. Show Answer Correct Answer: C) Reduce waste, support sustainable practices, volunteer, educate others, and advocate for conservation policies. 30. A healthy biosphere helps to regulate climate, this is an example of A) Human value. B) Direct economic value. C) Aesthetic value. D) Indirect economic value. Show Answer Correct Answer: D) Indirect economic value. 31. Different environmental, or ecosystem, conditions along an ecosystem's boundaries. A) Edge effect. B) Habitat effect. C) Bio effect. D) Ecosystem effect. Show Answer Correct Answer: A) Edge effect. 32. The biggest cause of biodiversity loss today is A) Climate change. B) Over-harvesting. C) Habitat change and fragmentation. D) Pollution. Show Answer Correct Answer: C) Habitat change and fragmentation. 33. These are organisms that are brought into a new environment, sometimes accidentally, sometimes on purpose; and have no natural enemies or controls. A) Keystone. B) Biodiversity. C) Endangered. D) Invasive. Show Answer Correct Answer: D) Invasive. 34. When a species becomes extinct, the plant and animal species associated with it in an obligatory way also become extinct. This phenomenon is called ..... A) Co-extinctions. B) Adaptive radiation. C) Ecological succession. D) Speciation. Show Answer Correct Answer: A) Co-extinctions. 35. Type of biodiversity that refers to all the differences between populations of species as well as between different species. A) Ecosystem diversity. B) Genetic diversity. C) Species diversity. D) None of these. Show Answer Correct Answer: C) Species diversity. 36. Cryopreservation is an example of A) In situ conservation of biodiversity. B) Ex situ conservation of biodiversity. C) Both in situ and ex situ conservation of biodiversity. D) None of these. Show Answer Correct Answer: B) Ex situ conservation of biodiversity. 37. ..... are different environmental conditions that occur around the boundaries of a habitat. A) Human interaction. B) Development. C) Edge effect. D) Boundary effect. Show Answer Correct Answer: C) Edge effect. 38. Adding natural predators to a degraded ecosystem is called ..... A) Biological augmentation. B) Biological introduction. C) Biological remediation. D) Biological magnifcation. Show Answer Correct Answer: A) Biological augmentation. 39. Using resources at a rate at which they can be replaced or recycled while preserving the long-term health of the biosphere A) Nonrenewable resource. B) Endemic. C) Renewable resource. D) Sustainable use. Show Answer Correct Answer: D) Sustainable use. 40. The sum total of all organisms in an area, taking into account the variety of species, their genes, their populations, and their communities, is called (a) A) Extinctions. B) Genetic divesity. C) Captive breeding. D) A. biodiversity. E) Treaty. Show Answer Correct Answer: D) A. biodiversity. 41. What is an example of a nonrenewable resource? A) Wind. B) Sunlight. C) Water. D) Coal. Show Answer Correct Answer: D) Coal. 42. The species that plays the biggest role in the habitat is? A) Smaller species. B) Larger species. C) Keystone Species. D) Evolving species. Show Answer Correct Answer: C) Keystone Species. 43. What is the term for the amount of land needed to support a person's lifestyle? A) Renewable resource. B) Carrying capacity. C) Ecological footprint. D) Nonrenewable resource. Show Answer Correct Answer: C) Ecological footprint. 44. What is a major direct threat to biodiversity? A) Global peace initiatives. B) Habitat loss and fragmentation. C) Renewable energy development. D) Internet expansion. Show Answer Correct Answer: B) Habitat loss and fragmentation. 45. If a species is only found in one place on Earth we call it a(n) ..... A) Local species. B) Lonesome species. C) Allopatric species. D) Endemic species. Show Answer Correct Answer: D) Endemic species. 46. Which applies to this environmental problem:Shark fin soup is consumed by millions of people in South East Asia. A) Population Growth. B) Pollution. C) Overconsumption. D) Habitat Loss. E) Invasive Species. Show Answer Correct Answer: C) Overconsumption. 47. Which of the following is not a cause for the loss of biodiversity? A) Over exploitation of natural resources. B) Keeping animals in zoological park. C) Destruction of habitat. D) None of the above. Show Answer Correct Answer: B) Keeping animals in zoological park. 48. How has domestication of species for agriculture impacted biodiversity? A) It has led to a decrease in biodiversity. B) It has caused extinction of all species. C) It has led to an increase in biodiversity. D) It has no impact on biodiversity. Show Answer Correct Answer: A) It has led to a decrease in biodiversity. 49. What is the significance of genetic diversity within species? A) Genetic diversity leads to uniformity within species. B) Genetic diversity decreases the chances of survival. C) Genetic diversity is irrelevant to species adaptation. D) Genetic diversity enhances adaptability, resilience, and survival of species. Show Answer Correct Answer: D) Genetic diversity enhances adaptability, resilience, and survival of species. 50. What is the source of many important prescription drugs? A) Synthetic chemicals. B) Bacteria, fungi, plants, and animals. C) Human-made substances. D) Minerals and metals. Show Answer Correct Answer: B) Bacteria, fungi, plants, and animals. 51. What is a biological diversity hotspot? A) An area with low species diversity. B) A region with only invasive species. C) A place with no conservation efforts. D) An area rich in species diversity but threatened by human activities. Show Answer Correct Answer: D) An area rich in species diversity but threatened by human activities. 52. What is the primary goal of protecting endangered species? A) To encourage habitat destruction. B) To promote urban development. C) To prevent species from going extinct. D) To increase pollution. Show Answer Correct Answer: C) To prevent species from going extinct. 53. What does it mean if a species is "endangered" ? A) It is a new species. B) It is at risk of extinction. C) It is safe from harm. D) It is found everywhere. Show Answer Correct Answer: B) It is at risk of extinction. 54. An endemic species is A) Exotic and found everywhere. B) Exotic and found only in certain regions. C) Native and found only in a limited area. D) Native and found everywhere. Show Answer Correct Answer: C) Native and found only in a limited area. 55. Too many animals grazing an area for too long, leading to reduced grass cover, which in turn leads to erosion that compacts soil and reduces its capacity to hold water A) Rangeland. B) Pasture. C) Overgrazing. D) Deforestation. Show Answer Correct Answer: C) Overgrazing. 56. What are biodiversity hotspots and why are they important for conservation efforts? A) Regions with high levels of biodiversity threatened by human activities and important for conservation efforts. B) Regions with high levels of biodiversity but not important for conservation efforts. C) Regions with low levels of biodiversity and not important for conservation efforts. D) Areas with high levels of biodiversity but not threatened by human activities. Show Answer Correct Answer: A) Regions with high levels of biodiversity threatened by human activities and important for conservation efforts. 57. Three hypotheses for explaining why tropics show greatest levels of species richness are: A) Higher productivity, stable climate, and greater habitat heterogeneity. B) Lower productivity, unstable climate, and less competition. C) Frequent glaciations, low sunlight, and high altitude. D) Limited resources, high predation, and low rainfall. Show Answer Correct Answer: A) Higher productivity, stable climate, and greater habitat heterogeneity. 58. What is THE most major cause of extinction today? A) Poaching. B) Disease. C) Habitat destruction by humans. D) Hunting. Show Answer Correct Answer: C) Habitat destruction by humans. 59. Which type of biodiversity increases as you move geographically from the polar regions to the equator? A) Social diversity. B) Species diversity. C) Ecosystem diversity. D) Genetic diversity. Show Answer Correct Answer: B) Species diversity. 60. What is a series of predictable stages of growth that a forest goes through-starting with soil? A) Random fluctuation. B) Primary succession. C) Sudden transformation. D) Secondary succession. Show Answer Correct Answer: D) Secondary succession. Next →Related QuizzesScience QuizzesClass 12 QuizzesClass 12 Biology Chapter 15 Biodiversity And Conservation Quiz 2Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 3Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 4Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 5Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 6Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 7Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 8Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books