This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 5 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... is not generally seen in biodiversity hotspots. A) Endemism. B) Species richness. C) Loss of diversity. D) Lesser interspecific competition. Show Answer Correct Answer: D) Lesser interspecific competition. 2. Volcanic activity occurs A) Only at the constructive margins of crustal plates. B) Only at the destructive margins of crustal plates. C) At both constructive and destructive margins of crustal plates. D) Only within 200 km of the oceans, as it is caused by water seeping into the Earth's interior. Show Answer Correct Answer: B) Only at the destructive margins of crustal plates. 3. The extinction of species is mainly attributed to human activities according to the passage. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 4. The ..... the lifespan of the organism, the slower the rate of evolution. A) Shorter. B) Longer. C) No relationship. D) Both short and long lifespan individuals will evolve at a slow pace. Show Answer Correct Answer: B) Longer. 5. Which of the following is NOT mentioned as an example of a recently extinct species? A) Dodo. B) Quagga. C) Steller's Sea Cow. D) African Elephant. Show Answer Correct Answer: D) African Elephant. 6. Reduction in the sea otter population affected the Pacific coast ecosystem by A) Decreasing the biodiversity of the ecosystem. B) Reducing the size of the sea urchin population. C) Promoting the increased growth of the nearby kelp beds. D) Increasing the biodiversity of the ecosystem. Show Answer Correct Answer: A) Decreasing the biodiversity of the ecosystem. 7. Invasive species often cause a decline in native biodiversity. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 8. Fill in the blank:Out of every 10 animals on this planet, ..... are insects. A) 7. B) 2. C) 4. D) 9. Show Answer Correct Answer: A) 7. 9. The status of a "threatened species" means: A) They are almost extinct. B) They are likely to become endangered. C) They are extinct. D) Their numbers are increasing. Show Answer Correct Answer: B) They are likely to become endangered. 10. What is an endemic species? A) Species found in one location. B) Species found in multiple locations. C) Species found in the certain temperature habitats. D) Species found along the equator. Show Answer Correct Answer: A) Species found in one location. 11. The more rapidly an environment changes, the ..... likely a species in the environment will be to adapt to those changes A) Less. B) More. C) Equal in how. D) No relationship. Show Answer Correct Answer: A) Less. 12. The latitudinal gradient is a natural pattern in which species diversity generally A) Increase toward the equator. B) Decreases toward the prime meridian. C) Decreases in warmer climates. D) Increases toward the poles. Show Answer Correct Answer: A) Increase toward the equator. 13. What is the range where organisms survive, but experience some stress such as lack of infertility, lack of growth, decreased activity? A) Optimal range. B) Zone of intolerance. C) Zone of physiological stress. D) Zone of greatness. Show Answer Correct Answer: C) Zone of physiological stress. 14. Biodiversity Hotspots are areas around the world where there are high levels of endemic species. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 15. Having more diversity allows organisms and environments to ..... A) Respond the changes better. B) Evolve and Adapt at a slower rate. C) Become extinct. D) All of these are correct. Show Answer Correct Answer: A) Respond the changes better. 16. An ecosystem is considered ..... if it is both resistant and resilient. A) Stable. B) Unbalanced. C) At high risk of extinction. D) At low risk of pollution. Show Answer Correct Answer: A) Stable. 17. Which of the following is NOT a potential source of sustainable energy? A) Oil. B) Biomass. C) Wind. D) Sun. Show Answer Correct Answer: A) Oil. 18. Discuss at least three conservation strategies used to protect biodiversity. A) Invasive species introduction, habitat destruction, and pollution. B) Chemical pollution, deforestation, and overfishing. C) Habitat preservation, captive breeding programs, and sustainable resource management. D) Urbanization, hunting, and climate change. Show Answer Correct Answer: C) Habitat preservation, captive breeding programs, and sustainable resource management. 19. Nonnative species that can significantly modify or disrupt habitat. A) Edge Effect. B) Biological Magnification. C) Eutrophication. D) Invasive Species. Show Answer Correct Answer: D) Invasive Species. 20. Where among the following will you find pitcher plant? A) Rain forest of North-East India. B) Sunderbans. C) Thar Desert. D) Western Ghats. Show Answer Correct Answer: A) Rain forest of North-East India. 21. Most scientists agree that cloning provides much help to prevent biodiversity loss. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 22. Why is biodiversity important for ecosystems? A) It decreases the resilience of ecosystems to environmental changes. B) It provides a wide range of ecosystem services. C) It leads to the extinction of native species. D) It reduces the number of available niches. Show Answer Correct Answer: B) It provides a wide range of ecosystem services. 23. Which term best describes the progression from sophomore year $\rightarrow$ junior year $\rightarrow$ senior year? A) Habitat destruction. B) Succession. C) Ecosystem diversity. D) Conservation. Show Answer Correct Answer: B) Succession. 24. What do the 3 R's stand for? A) Reduce, reuse, redeem. B) Reduce, reuse, recycle. C) Reuse, recycle, reward. D) Recycle, recycle, recycle. Show Answer Correct Answer: B) Reduce, reuse, recycle. 25. Clearing of a region that wipes out a habitat A) Destruction of habitat. B) Disruption of habitat. C) Fragmentation of habitat. D) Pollution of habitat. Show Answer Correct Answer: A) Destruction of habitat. ← 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 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