This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following helps protect endangered species? A) Building roads in forests. B) Creating wildlife reserves. C) Illegal hunting. D) Dumping waste in rivers. Show Answer Correct Answer: B) Creating wildlife reserves. 2. Which of the following countries have varied ecosystems? A) Norway. B) India. C) All the above. D) None of the above. Show Answer Correct Answer: B) India. 3. Assertion:All resources are not exhaustibleReason:Renewable resources can become non-renewable. A) Both Assertion and Reason are true and Reason is correct the explanation of Assertion. B) Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion. C) Assertion is true, but Reason is false. D) Assertion is false, but Reason is true. Show Answer Correct Answer: B) Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion. 4. Discuss the importance of community involvement in biodiversity conservation efforts. A) Biodiversity conservation efforts are better handled by government agencies alone. B) Community involvement has no impact on biodiversity conservation. C) Local communities are not interested in participating in biodiversity conservation. D) Community involvement helps promote local ownership, increase awareness, and foster sustainable practices. Show Answer Correct Answer: D) Community involvement helps promote local ownership, increase awareness, and foster sustainable practices. 5. What are introduced species? A) Species that have been moved to a new habitat. B) Species that are overexploited. C) Species that are extinct. D) Species that are native to a habitat. Show Answer Correct Answer: A) Species that have been moved to a new habitat. 6. Which of the following come under the broadly utilitarian argument for conserving biodiversity? A) Botanical gardens are feasts to our eyes. B) Cotton is a plant product which is useful for human beings. C) We get variety of fruits from plants. D) Every organism is a part of the earth. Show Answer Correct Answer: A) Botanical gardens are feasts to our eyes. 7. ..... is the variety of living things in the world. A) Biotic. B) Biodiversity. C) Keystone. D) Climate. Show Answer Correct Answer: B) Biodiversity. 8. Which of the following is an example of an indirect value of biodiversity? A) Creating better crops using wild species. B) Discovering new medicines from plants. C) Transferring genes between species for research purposes. D) Using clean watersheds to provide safe drinking water. Show Answer Correct Answer: D) Using clean watersheds to provide safe drinking water. 9. What is the range of conditions such as temperature, salinity, pH, or sunlight that an organism can endure before injury or death results? A) Island biogeography. B) Zone of intolerance. C) Zone of stress. D) Ecological tolerance. Show Answer Correct Answer: D) Ecological tolerance. 10. Which one of the following is not a feature of biodiversity Hotspots A) Large number of species. B) Mostly located in the polar regions. C) Abundance of endemic species. D) Mostly located in tropics. Show Answer Correct Answer: B) Mostly located in the polar regions. 11. The use of a resource at a rate that can be replaced or recycled is called ..... use. A) Sustainable. B) Unsustainable. C) Biological. D) Medicinal. Show Answer Correct Answer: A) Sustainable. 12. How does genetic diversity increase a species' chance of survival? A) It increases the number of organisms that have useful genes. B) It increases the ability of a species to adapt to environmental changes. C) It produces a variety of species within a biological community. D) It randomly distributes members of a species throughout an ecosystem. Show Answer Correct Answer: B) It increases the ability of a species to adapt to environmental changes. 13. The variety of ecosystems that are present in the biosphere A) Species diversity. B) Ecosystem diversity. C) Biological magnification. D) Genetic diversity. Show Answer Correct Answer: B) Ecosystem diversity. 14. India constitutes ..... percent of the world's land area and contributes ..... percent of the global species diversity. A) 5.5, 1.0. B) 2.4, 8.1. C) 8.1, 2.4. D) 1.0, 5.5. Show Answer Correct Answer: B) 2.4, 8.1. 15. The major human causes of extinction today are A) (A) hunting and destroying habitats. B) (B) polluting and introducing non-native species. C) Both (a) and (b). D) Neither (a) nor (b). Show Answer Correct Answer: C) Both (a) and (b). 16. What is the economic importance of biodiversity? A) It is essential for building infrastructure. B) It helps in weather prediction. C) It provides us with clothing, shelter, medicines, and other products. D) It is important for space exploration. Show Answer Correct Answer: C) It provides us with clothing, shelter, medicines, and other products. 17. Any natural resource available in limited amounts or replaced extremely slowly by natural processes. A) Renewable Resource. B) Nonrenewable Resource. C) All the above. D) None of the above. Show Answer Correct Answer: B) Nonrenewable Resource. 18. The practice of harvesting or hunting to such a degree that remaining individuals may not be able to replenish the population is called ..... A) Edge effects. B) Biomagnification. C) Overexploitation. D) Natural resource. Show Answer Correct Answer: C) Overexploitation. 19. The Sikhote-Alin Mountains, and the Siberian tigers living on them, are separated from other mountain regions in which the tigers could live. The mountains are an example of a(n) A) Habitat fragmentation. B) Mass extirpation. C) Mass extinction. D) Invasive species. Show Answer Correct Answer: A) Habitat fragmentation. 20. ..... is the resist environmental change without losing function. A) Resilient. B) Resistant. C) All the above. D) None of the above. Show Answer Correct Answer: B) Resistant. 21. There are so many species because: A) Evolution leads to diversity over time. B) All species are created at once. C) Species never change. D) There is only one habitat on Earth. Show Answer Correct Answer: A) Evolution leads to diversity over time. 22. What two factors would make biodiversity increase? A) Tornadoes and hurricanes. B) Large amount of producers and water. C) More predators and competition. D) The water cycle and ocean warming. Show Answer Correct Answer: B) Large amount of producers and water. 23. Some of the Cyanobacteria can fix atmospheric nitrogen in specialised cells called- A) Heterocyst. B) Akinetes. C) Homocyst. D) Nodule. Show Answer Correct Answer: A) Heterocyst. 24. Any different environmental condition occurring along an ecosystem's boundaries. A) Biological Magnification. B) Edge Effect. C) Eutrophication. D) Invasive Species. Show Answer Correct Answer: B) Edge Effect. 25. To manage, protect, and reintroduce threatened and endangered species are the goals of A) Wildlife sanctuaries. B) Ecological research initiatives. C) Species Survival Plans. D) Habitat restoration projects. Show Answer Correct Answer: C) Species Survival Plans. 26. Which term is defined by:careful preservation and protection of natural resources. A) Succession. B) Ecosystem diversity. C) Conservation. D) Habitat destruction. Show Answer Correct Answer: C) Conservation. 27. The living planet index A) Tracks species decline. B) Lists all animal species in the world. C) Describes exponential growth. D) None of the above. Show Answer Correct Answer: A) Tracks species decline. 28. Nonnative species that are transported to a new habitat. A) Innovative. B) Introduced species. C) New species. D) Intrusive species. Show Answer Correct Answer: B) Introduced species. 29. The introduction of Alien species affects biodiversity negatively if the alien species; A) Has a faster growth rate than native species. B) Outcompetes the native species for resources. C) Carries a new pathogen into the native species habitat. D) All of the above. Show Answer Correct Answer: D) All of the above. 30. What is a financial transaction in which a portion of a developing nation's foreign debt is forgiven in exchange for local investments in environmental conservation measures? A) Debt-for-nature swap. B) Debt-for-conservation deal. C) Trade-for-ecology exchange. D) Loan-for-landscape trade. Show Answer Correct Answer: A) Debt-for-nature swap. 31. ..... are large regions of the world with specific types of plants, animals, and climate patterns. A) Cities. B) Biomes. C) Ecosystems. D) Communities. Show Answer Correct Answer: B) Biomes. 32. True or False:While scientists have identified 1.7-2 million species, there are about 5-30 million in the world. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 33. Which best describes an effect of habitat fragmentation? A) Increased biodiversity. B) Decreased biodiversity. C) No effect on biodiversity. D) Less water and land pollution. Show Answer Correct Answer: B) Decreased biodiversity. 34. When forest land is converted for farming, what happens to wild animals? A) They become tame. B) They seek new harbours. C) They thrive better. D) They migrate overseas. Show Answer Correct Answer: B) They seek new harbours. 35. It is said we are currently in the ..... mass extinction. A) Third. B) Tenth. C) Sixth. D) First. Show Answer Correct Answer: C) Sixth. 36. When biodiversity increases, ..... A) Sustainability also increases. B) Sustainability decreases. C) Sustainability becomes greater by 2. D) Sustainability remains the same. Show Answer Correct Answer: A) Sustainability also increases. 37. It can be defined as the variety of different habitats, communities andecological processes. A biological community is defined by the species that occupy a particular area and the interactions between those species ..... A) SPECIES DIVERSITY. B) ECOLOGICAL DIVERSITY. C) GENETIC DIVERSITY. D) BIODIVERSITY. Show Answer Correct Answer: B) ECOLOGICAL DIVERSITY. 38. Which of the following is an example of overexploitation? A) Cleaning up polluted waterways. B) Excessive hunting of a species for its fur. C) Planting trees in a deforested area. D) Introducing a new species to a habitat. Show Answer Correct Answer: B) Excessive hunting of a species for its fur. 39. Animal cruelty means ..... A) Give then food and water. B) Love animals. C) Being unkind to animals. D) Take care your pets. Show Answer Correct Answer: C) Being unkind to animals. 40. The characters of a stable community-A. It shall not show too much variations in year to-year productivity.B. It must be either resistance or resilient to seasonal disturbance.C. It must be resistant to invasion by alien species.D. None A) A, B, C. B) D. C) B, C. D) A, B. Show Answer Correct Answer: A) A, B, C. 41. ..... is not generally seen in biodiversity hotspots. A) Lesser interspecific competition. B) Loss of diversity. C) Endemism. D) Species richness. Show Answer Correct Answer: A) Lesser interspecific competition. 42. Volcanic activity occurs A) Only at the constructive margins of crustal plates. B) Only at the destructive margins of crustal plates. C) At both constructive and destructive margins of crustal plates. D) Only within 200 km of the oceans, as it is caused by water seeping into the Earth's interior. Show Answer Correct Answer: B) Only at the destructive margins of crustal plates. 43. The extinction of species is mainly attributed to human activities according to the passage. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 44. The ..... the lifespan of the organism, the slower the rate of evolution. A) Shorter. B) Longer. C) No relationship. D) Both short and long lifespan individuals will evolve at a slow pace. Show Answer Correct Answer: B) Longer. 45. Which of the following is NOT mentioned as an example of a recently extinct species? A) Steller's Sea Cow. B) Dodo. C) Quagga. D) African Elephant. Show Answer Correct Answer: D) African Elephant. 46. Reduction in the sea otter population affected the Pacific coast ecosystem by A) Reducing the size of the sea urchin population. B) Decreasing the biodiversity of the ecosystem. C) Increasing the biodiversity of the ecosystem. D) Promoting the increased growth of the nearby kelp beds. Show Answer Correct Answer: B) Decreasing the biodiversity of the ecosystem. 47. Invasive species often cause a decline in native biodiversity. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 48. Fill in the blank:Out of every 10 animals on this planet, ..... are insects. A) 9. B) 2. C) 7. D) 4. Show Answer Correct Answer: C) 7. 49. The status of a "threatened species" means: A) They are almost extinct. B) They are extinct. C) They are likely to become endangered. D) Their numbers are increasing. Show Answer Correct Answer: C) They are likely to become endangered. 50. What is an endemic species? A) Species found in the certain temperature habitats. B) Species found along the equator. C) Species found in one location. D) Species found in multiple locations. Show Answer Correct Answer: C) Species found in one location. 51. The more rapidly an environment changes, the ..... likely a species in the environment will be to adapt to those changes A) No relationship. B) Equal in how. C) More. D) Less. Show Answer Correct Answer: D) Less. 52. The latitudinal gradient is a natural pattern in which species diversity generally A) Increases toward the poles. B) Increase toward the equator. C) Decreases in warmer climates. D) Decreases toward the prime meridian. Show Answer Correct Answer: B) Increase toward the equator. 53. What is the range where organisms survive, but experience some stress such as lack of infertility, lack of growth, decreased activity? A) Zone of intolerance. B) Zone of physiological stress. C) Zone of greatness. D) Optimal range. Show Answer Correct Answer: B) Zone of physiological stress. 54. Biodiversity Hotspots are areas around the world where there are high levels of endemic species. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 55. Having more diversity allows organisms and environments to ..... A) Respond the changes better. B) Evolve and Adapt at a slower rate. C) Become extinct. D) All of these are correct. Show Answer Correct Answer: A) Respond the changes better. 56. An ecosystem is considered ..... if it is both resistant and resilient. A) Unbalanced. B) At low risk of pollution. C) At high risk of extinction. D) Stable. Show Answer Correct Answer: D) Stable. 57. Which of the following is NOT a potential source of sustainable energy? A) Biomass. B) Oil. C) Wind. D) Sun. Show Answer Correct Answer: B) Oil. 58. Discuss at least three conservation strategies used to protect biodiversity. A) Invasive species introduction, habitat destruction, and pollution. B) Chemical pollution, deforestation, and overfishing. C) Habitat preservation, captive breeding programs, and sustainable resource management. D) Urbanization, hunting, and climate change. Show Answer Correct Answer: C) Habitat preservation, captive breeding programs, and sustainable resource management. 59. Nonnative species that can significantly modify or disrupt habitat. A) Biological Magnification. B) Eutrophication. C) Invasive Species. D) Edge Effect. Show Answer Correct Answer: C) Invasive Species. 60. Where among the following will you find pitcher plant? A) Western Ghats. B) Sunderbans. C) Rain forest of North-East India. D) Thar Desert. Show Answer Correct Answer: C) Rain forest of North-East India. ← PreviousNext →Related QuizzesScience QuizzesClass 12 QuizzesClass 12 Biology Chapter 15 Biodiversity And Conservation Quiz 1Class 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