This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 11 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. According to IUCN Red list, during the last two decades the maximum increase in the number of threatened species is among A) Amphibians. B) Reptiles. C) Birds. D) Mammals. Show Answer Correct Answer: A) Amphibians. 2. What are the consequences of eutrophication? A) Improved water clarity. B) Decreased plant growth. C) Increased fish population. D) Harmful algal blooms and dead zones. Show Answer Correct Answer: D) Harmful algal blooms and dead zones. 3. Which species is known to protect other species as well? A) A sustainable species. B) An invasive species. C) An introduced species. D) An umbrella species. Show Answer Correct Answer: D) An umbrella species. 4. What is meant by over-exploitation? A) Recycling of resources. B) Excessive use of natural resources. C) Planting native species. D) Water conservation. Show Answer Correct Answer: B) Excessive use of natural resources. 5. Variety of inheritable characteristics or genes in an interbreeding population. A) Genetic Diversity. B) Species Diversity. C) Ecosystem Diversity. D) None of the above. Show Answer Correct Answer: A) Genetic Diversity. 6. Biodiversity means all the organisms are ..... A) Endangered. B) The same. C) Different. D) Invasive. Show Answer Correct Answer: C) Different. 7. Maximum species diversity is seen in latitudinal range of A) 23.5 $^\circ$N to 66.5$^\circ$N. B) 23.5$^\circ$N to 23.5$^\circ$S. C) 23.5$^\circ$S to 66.5$^\circ$N. D) 66.5$^\circ$N to 90$^\circ$N. Show Answer Correct Answer: B) 23.5$^\circ$N to 23.5$^\circ$S. 8. Which of the following is an example of an ecosystem service? A) Deforestation. B) Pollination of crops by bees. C) Introduction of invasive species. D) Overfishing. Show Answer Correct Answer: B) Pollination of crops by bees. 9. Which of the following options are one of the examples of sacred groves in our country? A) Khasi and Jaintia hills in Meghalaya. B) Botanical gardens. C) Zoological parks. D) Wild life safari parks. Show Answer Correct Answer: A) Khasi and Jaintia hills in Meghalaya. 10. Species that are clearly critical to the functioning of an ecosystem are known as A) Biodiversity. B) Keystone species. C) Main species. D) Native species. Show Answer Correct Answer: B) Keystone species. 11. Which applies to this environmental problem:As more people are added to the Earth, more resources are required to meet their needs. A) Habitat Loss. B) Invasive Species. C) Pollution. D) Population Growth. E) Over-exploitation. Show Answer Correct Answer: D) Population Growth. 12. Species native to a particular area A) Poaching. B) Keystone species. C) Endemic species. D) Ecotourism. Show Answer Correct Answer: C) Endemic species. 13. Excessive use of a species, often leading to extinction A) Overexploitation. B) Natural resource. C) Biological magnification. D) Mass extinction. Show Answer Correct Answer: A) Overexploitation. 14. In the analogy used by ecologist Paul Ehrlich, rivets are compared to ..... and airplane to ..... A) Rivets to nature and airplane to animals. B) Rivets to species and airplane to ecosystem. C) Rivets to play tools and airplane to play station for passengers. D) None of the above. Show Answer Correct Answer: B) Rivets to species and airplane to ecosystem. 15. Germ plasm is A) An infection caused by germs. B) The genetic material of a species. C) A conservation strategy. D) An endemic plant of California. Show Answer Correct Answer: B) The genetic material of a species. 16. High biodiversity makes it more likely that the ecosystem will be able to keep functioning after a disturbance, such as disease or natural disaster. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 17. Changes in the composition of air, soil, and water A) Acid precipitation. B) Destruction of habitat. C) Disruption of habitat. D) Pollution of habitat. Show Answer Correct Answer: D) Pollution of habitat. 18. Which of the following is an example of poaching for ornamental purposes? A) Hunting for meat. B) Collecting animal skin or ivory. C) Killing animals to protect crops. D) Relocating animals. Show Answer Correct Answer: B) Collecting animal skin or ivory. 19. When nations ratify a (a), they promise to uphold the laws that are described. A) A. treaty. B) Biome. C) Environment. D) Species. E) Biodiversity. Show Answer Correct Answer: A) A. treaty. 20. Tragedy of the commons is the result of regulated and managed access to natural resources. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 21. What is the pH of normal rain? A) 4.1. B) 4.9. C) 5.6. D) 7.0. Show Answer Correct Answer: C) 5.6. 22. Any resource replaced by natural processes more quickly than it is consumed is a: A) Nonrenewable Resource. B) Renewable Resource. C) Endemic Resource. D) Natural Resource. Show Answer Correct Answer: B) Renewable Resource. 23. Based on current data about species population trends, some scientists claim we are in the middle of Earth's sixth ..... A) Biodiversity. B) Endemic. C) Treaty. D) Mass extinction. Show Answer Correct Answer: D) Mass extinction. 24. Fill in the blank:Since life originated on earth nearly ..... billion years ago, there had been enormous diversification of life forms on earth. A) 3.8. B) 2.5. C) 1.2. D) 4.6. Show Answer Correct Answer: A) 3.8. 25. The level of biodiversity that involves a variety of habits and communities is A) Ecosystem diversity. B) Genetic diversity. C) Population diversity. D) Species diversity. Show Answer Correct Answer: A) Ecosystem diversity. ← PreviousNext →Related 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 8Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 9Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books