This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 3 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is a biological diversity hotspot? A) An area rich in species diversity but threatened by human activities. B) A region with only invasive species. C) An area with low species diversity. D) A place with no conservation efforts. Show Answer Correct Answer: A) An area rich in species diversity but threatened by human activities. 2. What is the primary goal of protecting endangered species? A) To increase pollution. B) To prevent species from going extinct. C) To promote urban development. D) To encourage habitat destruction. Show Answer Correct Answer: B) To prevent species from going extinct. 3. What does it mean if a species is "endangered" ? A) It is found everywhere. B) It is safe from harm. C) It is at risk of extinction. D) It is a new species. Show Answer Correct Answer: C) It is at risk of extinction. 4. 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. 5. 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. 6. 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. 7. 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. 8. What is THE most major cause of extinction today? A) Habitat destruction by humans. B) Poaching. C) Disease. D) Hunting. Show Answer Correct Answer: A) Habitat destruction by humans. 9. Which type of biodiversity increases as you move geographically from the polar regions to the equator? A) Ecosystem diversity. B) Genetic diversity. C) Social diversity. D) Species diversity. Show Answer Correct Answer: D) Species diversity. 10. 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. 11. Which of the following helps protect endangered species? A) Illegal hunting. B) Building roads in forests. C) Creating wildlife reserves. D) Dumping waste in rivers. Show Answer Correct Answer: C) Creating wildlife reserves. 12. 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. 13. 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. 14. 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. 15. What are introduced species? A) Species that have been moved to a new habitat. B) Species that are native to a habitat. C) Species that are extinct. D) Species that are overexploited. Show Answer Correct Answer: A) Species that have been moved to a new habitat. 16. Which of the following come under the broadly utilitarian argument for conserving biodiversity? A) We get variety of fruits from plants. B) Cotton is a plant product which is useful for human beings. C) Every organism is a part of the earth. D) Botanical gardens are feasts to our eyes. Show Answer Correct Answer: D) Botanical gardens are feasts to our eyes. 17. ..... is the variety of living things in the world. A) Keystone. B) Biodiversity. C) Biotic. D) Climate. Show Answer Correct Answer: B) Biodiversity. 18. Which of the following is an example of an indirect value of biodiversity? A) Discovering new medicines from plants. B) Using clean watersheds to provide safe drinking water. C) Creating better crops using wild species. D) Transferring genes between species for research purposes. Show Answer Correct Answer: B) Using clean watersheds to provide safe drinking water. 19. 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. 20. Which one of the following is not a feature of biodiversity Hotspots A) Large number of species. B) Abundance of endemic species. C) Mostly located in the polar regions. D) Mostly located in tropics. Show Answer Correct Answer: C) Mostly located in the polar regions. 21. The use of a resource at a rate that can be replaced or recycled is called ..... use. A) Biological. B) Unsustainable. C) Sustainable. D) Medicinal. Show Answer Correct Answer: C) Sustainable. 22. 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. 23. The variety of ecosystems that are present in the biosphere A) Biological magnification. B) Ecosystem diversity. C) Species diversity. D) Genetic diversity. Show Answer Correct Answer: B) Ecosystem diversity. 24. India constitutes ..... percent of the world's land area and contributes ..... percent of the global species diversity. A) 1.0, 5.5. B) 5.5, 1.0. C) 8.1, 2.4. D) 2.4, 8.1. Show Answer Correct Answer: D) 2.4, 8.1. 25. 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). ← 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 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 10Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books