This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 14 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which aspect of plate activity has contributed least to global biodiversity? A) The separation of continental land masses. B) The formation of volcanic islands. C) The movement of land masses to new latitudes. D) The release of minerals on the deep ocean floor. Show Answer Correct Answer: D) The release of minerals on the deep ocean floor. 2. A place that stores seeds to preserve their genes for the future is called a/n ..... A) Plant depository. B) Botanical preserve. C) Seed bank. D) Herbarium. Show Answer Correct Answer: C) Seed bank. 3. People in more developed countries, like America and Europe, use less natural resources than people in less developed countries, like Africa. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 4. According to May's global estimates how many species of plants and animals, respectively, are yet to be discovered and described from India? A) 50, 000 and 90, 000. B) 3, 00, 000 and 90, 000. C) 3, 00, 000 and 1, 00, 000. D) 1, 00, 000 and 3, 00, 000. Show Answer Correct Answer: D) 1, 00, 000 and 3, 00, 000. 5. Nearly how many species of plants have been recorded from India? A) Nearly 1, 00, 000 species of plants have been recorded from India. B) Nearly 5, 000 species of plants have been recorded from India. C) Nearly 45, 000 species of plants have been recorded from India. D) Nearly 10, 000 species of plants have been recorded from India. Show Answer Correct Answer: C) Nearly 45, 000 species of plants have been recorded from India. 6. What is the variety of ecosystems that are present in the biosphere? A) Biodiversity. B) Species diversity. C) Genetic diversity. D) Ecosystem diversity. Show Answer Correct Answer: D) Ecosystem diversity. 7. Which of the following would be most effective in slowing the loss of biodiversity? A) Freezing fertilized eggs of endangered animals in case the species become extinct in the wild. B) Setting aside small plots of land in a variety of ecosystems, such as forests, grasslands, and marshes. C) Creating large parks/preserves in biodiversity hotspots. D) Requiring every country to maintain a seed bank. Show Answer Correct Answer: C) Creating large parks/preserves in biodiversity hotspots. 8. Some scientists believe that we are in a period of mass extinction because a large percentage of all living species are being hit by comets everyday. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 9. What is the significance of biocultural approaches mentioned in the text? A) Integrating human cultural aspects into conservation. B) Focusing only on technological solutions. C) Ignoring human impact. D) None of the above. Show Answer Correct Answer: A) Integrating human cultural aspects into conservation. 10. Which of the following is NOT a region of high biodiversity hotspot in India? A) Indo-Burma. B) Himalaya. C) Western Ghats. D) Sahara Desert. Show Answer Correct Answer: D) Sahara Desert. 11. Which of the following statements is incorrect regarding biodiversity A) Biodiversity deals with biological and geographical units such as genes, chromosomes, species, families and biogeography regions. B) Biodiversity is an addition sum of genetic, taxonomic and ecosystem diversity. C) It is a measure of the amount of resources shared by human population. D) None of these. Show Answer Correct Answer: C) It is a measure of the amount of resources shared by human population. 12. Biodiversity loss occurs due to-A. Habitat loss and fragmentationB. Co-extinctionC. over-exploitationD. Alien species invasion. A) A, B. B) B, C, D. C) A, B, C. D) A, B, C, D. Show Answer Correct Answer: D) A, B, C, D. 13. What is a major consequence of poaching? A) Increase in animal population. B) Increase in biodiversity. C) Extinction of animal species. D) Reforestation. Show Answer Correct Answer: C) Extinction of animal species. 14. Patches of suitable habitat surrounded by unsuitable habitat A) Habitat fagmentation. B) Habitat islands. C) Wildlife corridors. D) Habitat patches. Show Answer Correct Answer: A) Habitat fagmentation. 15. The higher the biodiversity, the more sustainable an ecosystem is A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 16. A human activity that causes habitat fragmentation is A) Urban development. B) Soil erosion. C) Desertification. D) None of the above. Show Answer Correct Answer: A) Urban development. 17. The major causes of species losses in a geographical region include: A) Habitat destruction, pollution, overexploitation, and invasive species. B) Increased rainfall and soil fertility. C) Expansion of protected areas and wildlife reserves. D) Genetic mutations leading to stronger populations. Show Answer Correct Answer: A) Habitat destruction, pollution, overexploitation, and invasive species. 18. The United States laws that protect endangered species A) Are considered to the strongest in the world. B) Are much weaker than the legal protections in most other countries. C) Are rarely enforced. D) Apply to only 10 species of animals and about 20 species of plants. Show Answer Correct Answer: A) Are considered to the strongest in the world. 19. Which type of coastline would probably support greater species diversity-a rocky, tree-lined coast, or a coast consisting mostly of beach sand? A) Rocky coast. B) Beach sand. C) All the above. D) None of the above. Show Answer Correct Answer: A) Rocky coast. 20. What can students do to help conserve biodiversity? A) Litter in parks. B) Learn about endangered species and share information. C) Waste water. D) Cut down trees. Show Answer Correct Answer: B) Learn about endangered species and share information. 21. A species is likely to become endangered soon. A) Extinct. B) Threatened. C) Endangered. D) Extirpated. Show Answer Correct Answer: B) Threatened. 22. These often reproduce in large numbers because of a lack of predators, and become over-powering in their new habitat. A) Acid precipitation. B) Invasive (introduced) species. C) Biological Magnification. D) Eutrophication. E) Pollution. Show Answer Correct Answer: B) Invasive (introduced) species. 23. Sixth extinction presently in progress is different from previous episodes, in which of the following ways? A) The current species extinction rates are 100 to 1000 times faster than in the pre-human times. B) The current species extinction rates are slower than in Dinosaur period. C) It is not true that extinction is currently taking place. D) None of the above. Show Answer Correct Answer: A) The current species extinction rates are 100 to 1000 times faster than in the pre-human times. 24. The law that protects biodiversity is ..... A) Government law. B) The endangered species Act. C) Index law. D) None of the above. Show Answer Correct Answer: B) The endangered species Act. 25. National parks, and sanctuaries, are examples of ..... type of biodiversity conservation. A) Fx-Situ. B) Ex-Situ. C) In-Situ. D) Axe-Situ. Show Answer Correct Answer: C) In-Situ. 26. ..... ecosystems can resist environmental change without losing function. A) Strong. B) Diverse. C) Resistant. D) None of the above. Show Answer Correct Answer: C) Resistant. 27. Which of the following is a consequence of habitat fragmentation on biodiversity? A) Increased genetic diversity. B) Improved resource availability. C) Decreased species interactions. D) Enhanced ecosystem stability. Show Answer Correct Answer: C) Decreased species interactions. 28. What is one way to reduce threats to biodiversity? A) Hunting animals. B) Use of plastic bags. C) Urbanization. D) Recycling materials. Show Answer Correct Answer: D) Recycling materials. 29. The number of different species in an area A) Biodiversity. B) Aesthetic value. C) Genetic diversity. D) Introduced species. Show Answer Correct Answer: A) Biodiversity. 30. Where are some of the unique ecosystems of the United States? A) In Pacific Northwest and California. B) In the Florida Everglades and Hawaii. C) Both of these are correct. D) None of these are correct. Show Answer Correct Answer: C) Both of these are correct. 31. Long-term ecosystem experiments to study biodiversity were conducted by: A) David Tilman. B) MacArthur. C) Jane Goodall. D) Raymond F. Dasmann. Show Answer Correct Answer: A) David Tilman. 32. Why is preserving the rainforest important? A) Because it is the largest forest in the world. B) Because it has the most diverse plant species. C) Because it is home to the most species of insects, amphibians, and birds. D) Because it has the highest amount of rainfall. Show Answer Correct Answer: C) Because it is home to the most species of insects, amphibians, and birds. 33. A species that is at serious risk of extinction is called a(n) A) Threatened species. B) Endangered species. C) Extirpated species. D) Invasive species. Show Answer Correct Answer: B) Endangered species. 34. I will conserve biodiversity since it helps me to get my unlimited supply of food. This is a A) Narrowly utilitarian argument of biodiversity conservation. B) Broadly utilitarian argument of biodiversity conservation. C) Ethical argument of biodiversity conservation. D) None of the above. Show Answer Correct Answer: A) Narrowly utilitarian argument of biodiversity conservation. 35. What human activities have influenced recent extinction events? A) Habitat destruction. B) Poaching. C) Introducing exotic species. D) All are correct. Show Answer Correct Answer: D) All are correct. 36. List the domain and kingdom based upon the following characteristics.Characteristics:-Multicellular-Eukaryotic-Mostly Autotrophic (photosynthetic)-Cell Walls-Develop from Spores or Seeds A) Domain:EukaryotaKingdom:Protista. B) Domain:EukaryotaKingdom:Fungi. C) Domain:EukaryotaKingdom:Plantae. D) Domain:BacteriaKingdom:Plantae. Show Answer Correct Answer: C) Domain:EukaryotaKingdom:Plantae. 37. A species is ..... to an area if it is found nowhere else in the world. A) Mass extinction. B) Biodiversity hotspot. C) Endemic. D) Treaty. Show Answer Correct Answer: C) Endemic. 38. How did the CITES treaty reduce the slaughter of elephants? A) (a) It offered a bounty to tribal leaders for identifying poachers. B) (b) It banned imports and exports of all ivory worldwide. C) (c) It limited sales of ivory ro the antique market. D) Both (a) and (c). Show Answer Correct Answer: B) (b) It banned imports and exports of all ivory worldwide. 39. What is one type of ecosystem? A) Forest. B) Ocean. C) Desert. D) Mountain. Show Answer Correct Answer: A) Forest. 40. A form of water pollution that destroys underwater habitats A) Bioremediation. B) Biological magnification. C) Acid precipitation. D) Eutrophication. Show Answer Correct Answer: D) Eutrophication. 41. Which applies to this environmental problem:Only 10% of Madagascar's forests remain due to deforestation. A) Overconsumption. B) Pollution. C) Invasive Species. D) Population Growth. E) Habitat Loss. Show Answer Correct Answer: E) Habitat Loss. 42. What do you call an ecosystem that is mature with growth and various trophic levels. A) Secondary succession. B) Pioneer species. C) Climax community. D) Primary succession. Show Answer Correct Answer: C) Climax community. 43. Members of Protista are primarily- A) Parasites. B) Terrestrial. C) Photosynthetic. D) Aquatic. Show Answer Correct Answer: D) Aquatic. 44. What does habitat loss lead to? A) Displacement or destruction of biodiversity. B) Growth of new species. C) Balanced ecosystems. D) Increase in forest area. Show Answer Correct Answer: A) Displacement or destruction of biodiversity. 45. What is the primary reason biologists want to preserve species that are not directly used by humans? A) They are beautiful. B) They offer potential sources of desirable genes for future use. C) They help reduce competition between species. D) They might become extinct soon. Show Answer Correct Answer: B) They offer potential sources of desirable genes for future use. 46. How can habitat disruption affect biodiversity? A) It can lead to loss of biodiversity. B) It will lead to new species taking over all of the habitats. C) It will lead to climate change. D) It will cause the animals to get sick. Show Answer Correct Answer: A) It can lead to loss of biodiversity. 47. The Evil Quartet is the sobriquet used to describe four causes of biodiversity losses. One of them is given in the options below. Tick the appropriate one. A) An evil spirit came in disguise to the earth and consumed biodiversity. B) When a species becomes extinct, the plant and animal species associated with it also becomes extinct. C) Aliens arrived from outer space and destroyed earth's biodiversity. D) None of the above. Show Answer Correct Answer: B) When a species becomes extinct, the plant and animal species associated with it also becomes extinct. 48. Extinction rates are significantly ..... in recent decades than before. A) Lower. B) Higher. C) All the above. D) None of the above. Show Answer Correct Answer: B) Higher. 49. What is the major cause of extinction and loss of biodiversity? A) Deforestation. B) Poaching. C) Climate change. D) Pollution. Show Answer Correct Answer: C) Climate change. 50. True or false. Pollution tends to increase biodiversity. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 51. How does pollution threaten biodiversity? A) It helps plants grow faster. B) It provides clean water. C) It harms living things and their habitats. D) It increases animal populations. Show Answer Correct Answer: C) It harms living things and their habitats. 52. A natural resource that is present in limited amounts or requires a long period of time to be replaced A) Non-renewable resource. B) Sustainable use. C) Over exploitation. D) Renewable resource. Show Answer Correct Answer: A) Non-renewable resource. 53. The Ecological hotspot found in the south America is A) Queensland. B) Central American lowland forest. C) Western Equador and coloumbian congo. D) Northern borneo. Show Answer Correct Answer: C) Western Equador and coloumbian congo. 54. An ecosystem is considered stable if it is both resistant and resilient. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 55. Which level of ecological organization is concerned with both the biotic and abiotic components of an environment? A) Population. B) Biosphere. C) Community. D) Ecosystem. Show Answer Correct Answer: D) Ecosystem. 56. Species diversity increases as we proceed from ..... Species divrsity decreases as we proceed from ..... A) High altitude to low altitude and high latitude to low latitude. B) Low altitude to high altitude and high latitude to low latitude. C) Low altitude to high altitude and low latitude to high latitude. D) High altitude to low altitude and low latitude to high Latitude. Show Answer Correct Answer: A) High altitude to low altitude and high latitude to low latitude. 57. A wooded area has been divided by a housing development and is threatening the biodiversity of the area. What term is used to describe this threat from human activities? A) Habitat fragmentation. B) Acid precipitation. C) Habitat augmentation. D) Global warming. Show Answer Correct Answer: A) Habitat fragmentation. 58. Which one of the following is an endangered plant species of India A) Rauwolfia serpentina. B) Santalum album. C) Cycas beddonei. D) All of the above. Show Answer Correct Answer: D) All of the above. 59. A natural resource that is replaced by natural processes faster than it is consumed A) Non-renewable resource. B) Bioremediation. C) Sustainable use. D) Renewable resource. Show Answer Correct Answer: D) Renewable resource. 60. The ethical argument for conserving biodiversity as mentioned in the passage is: A) Conserving biodiversity leads to economic growth. B) Biodiversity increases agricultural productivity. C) Biodiversity reduces pollution levels. D) Humans have a moral responsibility to protect other living beings. Show Answer Correct Answer: D) Humans have a moral responsibility to protect other living beings. ← PreviousNext →Related QuizzesScience QuizzesClass 12 QuizzesClass 12 Biology Chapter 15 Biodiversity And Conservation Quiz 1Class 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books