This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 36 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 36 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. David Tilman's long-term ecosystem experimentsusing outdoor plots showed that A) Lncreased diversity contributed to lower productivity. B) Lncreased diversity contributed to higher productivity. C) Lncreased diversity has no impact on productivity. D) Lncreased diversity has unpredictable impact on productivity. Show Answer Correct Answer: A) Lncreased diversity contributed to lower productivity. 2. The variety of different species in a biological community A) Ecosystem diversity. B) Species diversity. C) Genetic diversity. D) Extinction. Show Answer Correct Answer: B) Species diversity. 3. What is the difference in the genes of individuals within a population (group of the same species)? A) Genetic diversity. B) Species diversity. C) Ecosystem diversity. D) Ecosystem resilience. Show Answer Correct Answer: A) Genetic diversity. 4. What is biodiversity and why is it important in ecosystems? A) Biodiversity refers to the number of species in a single habitat. B) Biodiversity is unimportant for ecosystem stability and function. C) Biodiversity is the same as genetic diversity within a species. D) Biodiversity is the variety of life in ecosystems, and it is crucial for ecosystem health, resilience, and the provision of essential services. Show Answer Correct Answer: D) Biodiversity is the variety of life in ecosystems, and it is crucial for ecosystem health, resilience, and the provision of essential services. 5. Almost ..... of the world's species are found in 5 biodiversity hotspots. A) 20%. B) 80%. C) 50%. D) 100%. Show Answer Correct Answer: C) 50%. 6. It refers to the range of different inherited traits within a species and there would be many individuals with a wide variety of different traits. A) GENETIC DIVERSITY. B) SPECIES DIVERSITY. C) ECOLOGICAL DIVERSITY. D) BIODIVERSITY. Show Answer Correct Answer: A) GENETIC DIVERSITY. 7. In what part of the world are the greatest number of extinctions occurring? A) In tropical rain forests. B) In deserts. C) In the Arctic. D) In Europe and the United States. Show Answer Correct Answer: A) In tropical rain forests. 8. What do we call services provided by biodiversity? A) Natural resources. B) Ecosystem services. C) Habitat richness. D) None of the above. Show Answer Correct Answer: B) Ecosystem services. 9. Which of the following is an example of the economic benefit of preserving ecosystems? A) The discovery of penicillin in bread mold. B) New York City choosing to clean up its watersheds rather than building a filtration system. C) Using a tropical forest as a tourist attraction. D) Finding a new crop in a remote region. Show Answer Correct Answer: B) New York City choosing to clean up its watersheds rather than building a filtration system. 10. What is mean by in situ? A) Protection, upliftment and scientific management to biodiversity. B) The preservation of components of biological outside their natural habitats. C) The conservation of species in their natural habitats. D) None of the above. Show Answer Correct Answer: C) The conservation of species in their natural habitats. 11. What is bionics or biomimetics inspired by? A) Organisms in nature. B) Artificial intelligence. C) Outer space. D) Ancient civilizations. Show Answer Correct Answer: A) Organisms in nature. 12. What is the impact of the extinction of one species on an ecosystem? A) It could have a 'domino' effect, resulting in the extinction of other species. B) It has no impact on the ecosystem. C) It leads to the growth of new species. D) It increases the biodiversity of the ecosystem. Show Answer Correct Answer: A) It could have a 'domino' effect, resulting in the extinction of other species. 13. The region of biosphere reserve which is legally protected and where no human activity is allowed is known as A) Buffer zone. B) Transition zone. C) Restoration zone. D) Core zone. Show Answer Correct Answer: D) Core zone. 14. Threatened areas of high biodiversity. A) Endangered areas. B) Threatened areas. C) Biodiversity hotspots. D) Remote islands. Show Answer Correct Answer: C) Biodiversity hotspots. 15. Why is it important to protect endangered species? A) Biodiversity has no impact on human health. B) Protecting endangered species is important for biodiversity, ecosystem health, and economic benefits. C) Endangered species are not important for the environment. D) Protecting endangered species only benefits certain industries. Show Answer Correct Answer: B) Protecting endangered species is important for biodiversity, ecosystem health, and economic benefits. 16. A species that is not native to a particular region and has no natural predators and little competition A) Consumer species. B) Producer species. C) Invasive species. D) Adapted species. Show Answer Correct Answer: C) Invasive species. 17. Geothermal A) Nonrenewable. B) Renewable. C) All the above. D) None of the above. Show Answer Correct Answer: B) Renewable. 18. The use of living organisms (like prokaryotes, fungi, or plants) to detoxify a polluted area is called ..... A) Remediation. B) De-pollution. C) Bioremediation. D) Going green. Show Answer Correct Answer: C) Bioremediation. 19. What does the CBC use 'biocultural' to describe? A) Technological advancements. B) Political structures. C) Financial systems. D) Interconnected nature of people and place. Show Answer Correct Answer: D) Interconnected nature of people and place. 20. If a person proceeds from high latitude to low latitude, then he will observe A) Increase in species diversity. B) Increase in number of producers but decrease in consumers. C) Decrease in species diversity. D) No change in species diversity. Show Answer Correct Answer: A) Increase in species diversity. 21. How and why is this diversity important to the biosphere? A) Diversity is important to the biosphere because it maintains ecosystem stability and supports life. B) Diversity is important to the biosphere because it reduces the amount of oxygen produced. C) Diversity is important to the biosphere because it causes extinction of species. D) Diversity is important to the biosphere because it limits food sources for organisms. Show Answer Correct Answer: A) Diversity is important to the biosphere because it maintains ecosystem stability and supports life. 22. The Earth summit held in Rio de Janeiro in 1992 was called A) For immediate steps to discontinue use of cfcs that were damaging the ozone layer. B) To reduce CO2 emissions and global warming. C) For conservation of biodiversity and sustainable utilisation of its benefits. D) To assess threat posed to native species by invasive weed species. Show Answer Correct Answer: C) For conservation of biodiversity and sustainable utilisation of its benefits. 23. High biodiversity removes the predators and parasites in the ecosystem and makes it safer. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 24. How many species are estimated to be living on Earth? A) Between 10, 000 and 100, 000. B) Between 500, 000 and 1 million. C) Between 1 and 2 million. D) Between 10 million and 50 million. Show Answer Correct Answer: D) Between 10 million and 50 million. 25. Species richness generally increases toward the A) Poles. B) Equator. C) Meridians. D) Parallels. Show Answer Correct Answer: B) Equator. ← 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