This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The biodiversity is divided into how many levels? A) 2. B) 3. C) 4. D) 5. Show Answer Correct Answer: B) 3. 2. Which group of organism is responsible for about 80% of our medicines we use today? A) Insects. B) Fungi. C) Vertebrates. D) Plants. Show Answer Correct Answer: D) Plants. 3. Events when extinction rates far exceed the normal background rate A) Background Extinction. B) Mass Extinction. C) General Extinction. D) None of the above. Show Answer Correct Answer: B) Mass Extinction. 4. How can individuals help in conservation efforts? A) Increase plastic use. B) Support deforestation initiatives. C) Reduce waste, support sustainable practices, volunteer, educate others, and advocate for conservation policies. D) Ignore environmental issues. Show Answer Correct Answer: C) Reduce waste, support sustainable practices, volunteer, educate others, and advocate for conservation policies. 5. A healthy biosphere helps to regulate climate, this is an example of A) Direct economic value. B) Indirect economic value. C) Aesthetic value. D) Human value. Show Answer Correct Answer: B) Indirect economic value. 6. Different environmental, or ecosystem, conditions along an ecosystem's boundaries. A) Bio effect. B) Ecosystem effect. C) Edge effect. D) Habitat effect. Show Answer Correct Answer: C) Edge effect. 7. The biggest cause of biodiversity loss today is A) Climate change. B) Over-harvesting. C) Habitat change and fragmentation. D) Pollution. Show Answer Correct Answer: C) Habitat change and fragmentation. 8. These are organisms that are brought into a new environment, sometimes accidentally, sometimes on purpose; and have no natural enemies or controls. A) Invasive. B) Endangered. C) Keystone. D) Biodiversity. Show Answer Correct Answer: A) Invasive. 9. When a species becomes extinct, the plant and animal species associated with it in an obligatory way also become extinct. This phenomenon is called ..... A) Co-extinctions. B) Adaptive radiation. C) Ecological succession. D) Speciation. Show Answer Correct Answer: A) Co-extinctions. 10. Type of biodiversity that refers to all the differences between populations of species as well as between different species. A) Ecosystem diversity. B) Genetic diversity. C) Species diversity. D) None of these. Show Answer Correct Answer: C) Species diversity. 11. Cryopreservation is an example of A) In situ conservation of biodiversity. B) Ex situ conservation of biodiversity. C) Both in situ and ex situ conservation of biodiversity. D) None of these. Show Answer Correct Answer: B) Ex situ conservation of biodiversity. 12. ..... are different environmental conditions that occur around the boundaries of a habitat. A) Development. B) Edge effect. C) Human interaction. D) Boundary effect. Show Answer Correct Answer: B) Edge effect. 13. Adding natural predators to a degraded ecosystem is called ..... A) Biological remediation. B) Biological augmentation. C) Biological magnifcation. D) Biological introduction. Show Answer Correct Answer: B) Biological augmentation. 14. Using resources at a rate at which they can be replaced or recycled while preserving the long-term health of the biosphere A) Renewable resource. B) Nonrenewable resource. C) Sustainable use. D) Endemic. Show Answer Correct Answer: C) Sustainable use. 15. The sum total of all organisms in an area, taking into account the variety of species, their genes, their populations, and their communities, is called (a) A) A. biodiversity. B) Genetic divesity. C) Captive breeding. D) Extinctions. E) Treaty. Show Answer Correct Answer: A) A. biodiversity. 16. What is an example of a nonrenewable resource? A) Water. B) Wind. C) Coal. D) Sunlight. Show Answer Correct Answer: C) Coal. 17. The species that plays the biggest role in the habitat is? A) Smaller species. B) Larger species. C) Keystone Species. D) Evolving species. Show Answer Correct Answer: C) Keystone Species. 18. What is the term for the amount of land needed to support a person's lifestyle? A) Carrying capacity. B) Renewable resource. C) Nonrenewable resource. D) Ecological footprint. Show Answer Correct Answer: D) Ecological footprint. 19. What is a major direct threat to biodiversity? A) Global peace initiatives. B) Habitat loss and fragmentation. C) Renewable energy development. D) Internet expansion. Show Answer Correct Answer: B) Habitat loss and fragmentation. 20. If a species is only found in one place on Earth we call it a(n) ..... A) Local species. B) Lonesome species. C) Allopatric species. D) Endemic species. Show Answer Correct Answer: D) Endemic species. 21. Which applies to this environmental problem:Shark fin soup is consumed by millions of people in South East Asia. A) Habitat Loss. B) Invasive Species. C) Pollution. D) Population Growth. E) Overconsumption. Show Answer Correct Answer: E) Overconsumption. 22. Which of the following is not a cause for the loss of biodiversity? A) Over exploitation of natural resources. B) Keeping animals in zoological park. C) Destruction of habitat. D) None of the above. Show Answer Correct Answer: B) Keeping animals in zoological park. 23. How has domestication of species for agriculture impacted biodiversity? A) It has led to a decrease in biodiversity. B) It has caused extinction of all species. C) It has led to an increase in biodiversity. D) It has no impact on biodiversity. Show Answer Correct Answer: A) It has led to a decrease in biodiversity. 24. What is the significance of genetic diversity within species? A) Genetic diversity leads to uniformity within species. B) Genetic diversity decreases the chances of survival. C) Genetic diversity is irrelevant to species adaptation. D) Genetic diversity enhances adaptability, resilience, and survival of species. Show Answer Correct Answer: D) Genetic diversity enhances adaptability, resilience, and survival of species. 25. What is the source of many important prescription drugs? A) Synthetic chemicals. B) Bacteria, fungi, plants, and animals. C) Human-made substances. D) Minerals and metals. Show Answer Correct Answer: B) Bacteria, fungi, plants, and animals. ← PreviousNext →Related QuizzesClass 12 Biology Chapter 15 Biodiversity And Conservation Quiz 1Class 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 10Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books