This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 31 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 31 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is species diversity? A) The variety of genes present in a population. B) The number of different species and their abundance in a community. C) The variety of ecosystems in the biosphere. D) The excessive use of a species with economic value. Show Answer Correct Answer: B) The number of different species and their abundance in a community. 2. Which area would have less biodiversity? A) Desert. B) Forest. C) Ocean. D) Lake. Show Answer Correct Answer: A) Desert. 3. A plan to establish an 8000km long strip of land across eight SE Asian countries to rejoin fragments of habitats is an example of A) Wildlife corridor. B) World biodiversity treaty. C) Captive breeding program. D) Conservation concession. Show Answer Correct Answer: A) Wildlife corridor. 4. Which applies to this environmental problem:The use of Earth's natural resources has more than tripled in 40 years. A) Habitat Loss. B) Invasive Species. C) Pollution. D) Population Growth. E) Overconsumption. Show Answer Correct Answer: E) Overconsumption. 5. Human threats to biodiversity include: A) Population growth. B) Pollution. C) Habitat destruction. D) All of the above. Show Answer Correct Answer: D) All of the above. 6. Changes in one part of an ecosystem that can affect the whole ecosystem A) Ecosystem diversity. B) Overexploitation. C) Pollution of habitat. D) Disruption of habitat. Show Answer Correct Answer: D) Disruption of habitat. 7. There's been five major ones. We think this due to rapid change of climate, natural disaster (volcanic eruption, meteorite impact?), so species die as they can't survive the change in conditions. A) Mass extinction. B) Hot Spots. C) Keystone Species. D) Background Extinction. Show Answer Correct Answer: A) Mass extinction. 8. The unsustainable use of natural resources which occurs when harvesting exceeds reproduction of wild plant and animal species continues to be a major threat to biodiversity. A) Overexploitation. B) Biodiversity. C) Ecosystem Diversity. D) Gamma Diversity. Show Answer Correct Answer: A) Overexploitation. 9. Evaluate the effectiveness of protected areas in conserving biodiversity. Provide examples to support your answer. A) Protected areas are ineffective because they restrict human activities. B) Protected areas are effective as they provide safe habitats for endangered species. C) Protected areas are only effective in tropical regions. D) Protected areas have no impact on biodiversity conservation. Show Answer Correct Answer: B) Protected areas are effective as they provide safe habitats for endangered species. 10. India has only 2.4 % of the world's land area but its share of global species diversity is A) 1.8%. B) 3.1 %. C) 5.1 %. D) 8.1 %. Show Answer Correct Answer: D) 8.1 %. 11. According to the passage, among animals, which group is the most species-rich taxonomic group, making up more than 70 per cent of the total? A) Mammals. B) Insects. C) Fishes. D) Birds. Show Answer Correct Answer: B) Insects. 12. What is common to lantana, African catfish and eichhornia A) All are endangered species of India. B) All are keystone species. C) All are mammals found in India. D) All the species are neither threatened nor indigenous species of India. Show Answer Correct Answer: D) All the species are neither threatened nor indigenous species of India. 13. Which applies to this environmental problem:The albatross are dying from eating plastic items that look like food. A) Habitat Loss. B) Invasive Species. C) Pollution. D) Population Growth. E) Overconsumption. Show Answer Correct Answer: C) Pollution. 14. The stinkbug eats caterpillars which are common best for farmers. This belongs to which benefit category of biodiversity? A) Medicinal. B) Recreational. C) Agriculture. D) Aesthetics. Show Answer Correct Answer: C) Agriculture. 15. ..... affected by change, but bounce back and regain function. A) Resistant. B) Resilient. C) All the above. D) None of the above. Show Answer Correct Answer: B) Resilient. 16. Which of the following best defines species diversity? A) The range of different habitats within a particular area. B) The variety of ecosystems within a geographical location. C) The diversity of genes within a population. D) The variety of species within a community or ecosystem. Show Answer Correct Answer: D) The variety of species within a community or ecosystem. 17. How can individuals contribute to the conservation of biodiversity? A) Increase plastic use. B) Reduce waste, support sustainable practices, participate in conservation efforts, plant native species, and educate others. C) Support deforestation. D) Ignore local wildlife. Show Answer Correct Answer: B) Reduce waste, support sustainable practices, participate in conservation efforts, plant native species, and educate others. 18. Guitarist for U2 A) Bono. B) The Edge. C) Adam Clayton. D) Larry Mullen Jr. Show Answer Correct Answer: B) The Edge. 19. How does the government help restore species that are threatened or endangered? A) Prohibit "Take". B) Conserve habitat lands. C) Captive breeding programs (like in zoos). D) All of the above. Show Answer Correct Answer: D) All of the above. 20. Which term refers to the process by which individuals that are better suited to the environment survive and reproduce therefore passing down their genes to their offspring? A) Evolution. B) Variation. C) Adaptation. D) Natural Selection. Show Answer Correct Answer: D) Natural Selection. 21. Which of the following is a characteristic of an endangered species? A) It is abundant in its natural habitat. B) It is at high risk of extinction in the wild. C) It is a newly discovered species. D) It is a species that has been introduced to a new habitat. Show Answer Correct Answer: B) It is at high risk of extinction in the wild. 22. Biologists put extra effort into protecting these because they have many species living in them. A) Cities. B) Biodiversity Hotspots. C) Farms. D) Conservation stations. Show Answer Correct Answer: B) Biodiversity Hotspots. 23. How does habitat restoration contribute to biodiversity? A) Habitat restoration only benefits human activities. B) Habitat restoration has no impact on ecosystem health. C) Habitat restoration contributes to biodiversity by re-establishing native species and improving ecosystem health. D) Habitat restoration decreases the number of species in an ecosystem. Show Answer Correct Answer: C) Habitat restoration contributes to biodiversity by re-establishing native species and improving ecosystem health. 24. Which of the following equation correctly represents species-area relationship? A) Log C = log S + Z log A. B) Log A = log C + Z log S. C) Log A = log S + Z log C. D) Log S = log C + Z log A. Show Answer Correct Answer: D) Log S = log C + Z log A. 25. Why are keystone species important in ecosystems? A) They are the only species that can survive in harsh conditions. B) They help maintain the structure and balance of an ecosystem. C) They are the primary producers in an ecosystem. D) They are always the largest predators. Show Answer Correct Answer: B) They help maintain the structure and balance of an ecosystem. ← 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