This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What role do invasive species play in the loss of biodiversity? A) Invasive species contribute to the loss of biodiversity by outcompeting native species and disrupting ecosystems. B) Invasive species only affect human activities, not biodiversity. C) Invasive species increase biodiversity by introducing new genetic variation. D) Invasive species have no impact on native species or ecosystems. Show Answer Correct Answer: A) Invasive species contribute to the loss of biodiversity by outcompeting native species and disrupting ecosystems. 2. All of the following are causes for biodiversity loss, EXCEPT: A) Habitat Loss. B) Invasive Species. C) Replanting trees. D) Pollution. Show Answer Correct Answer: C) Replanting trees. 3. Forest clearing, farming, and road building are all examples of A) Biodiversity. B) Population distribution. C) Habitat loss. D) Climate Change. Show Answer Correct Answer: C) Habitat loss. 4. How many mega diversity countries are there in the world, and is India one of them? A) There are 12 mega diversity countries in the world, and India is one of them. B) There are 8 mega diversity countries in the world, and India is not one of them. C) There are 20 mega diversity countries in the world, and India is not one of them. D) There are 15 mega diversity countries in the world, and India is one of them. Show Answer Correct Answer: A) There are 12 mega diversity countries in the world, and India is one of them. 5. What is overfishing? A) Fishing at a sustainable rate. B) Fishing beyond the capacity of a species to reproduce. C) Fishing only for non-target species. D) Fishing in freshwater ecosystems only. Show Answer Correct Answer: B) Fishing beyond the capacity of a species to reproduce. 6. A stable ecosystem typically has high biodiversity. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 7. A species of organism disappearing from the biosphere A) Biological augmentation. B) Biological magnification. C) Extinction. D) Overexploitation. Show Answer Correct Answer: C) Extinction. 8. The increased insatiable demand for resources results to land use changes hence the loss of genetic diversity. Species reduction, increased ecosystem changes such as random population changes, and disease outcrop habitat fragmentation result in biodiversity losses. A) Pollution. B) B. Exploitation. C) Climatic Change. D) Habitat Alteration/ Destruction. Show Answer Correct Answer: D) Habitat Alteration/ Destruction. 9. Use Low Flush Toilets, Water Plant If Needed and Pay Attention to Leaky Taps are examples of ..... A) ECOLOGICAL LIFE SUPPORT. B) WILDLIFE CONSERVATION. C) WATER CONSERVATION. D) SOIL CONSERVATION. Show Answer Correct Answer: C) WATER CONSERVATION. 10. What is a biodiversity hotspot? A) A biodiversity hotspot is an area with only invasive species and no native plants. B) A biodiversity hotspot is a region with a high level of endemic species and significant habitat loss. C) A biodiversity hotspot is a region with low species diversity and abundant habitat. D) A biodiversity hotspot is a place with high pollution levels and no wildlife. Show Answer Correct Answer: B) A biodiversity hotspot is a region with a high level of endemic species and significant habitat loss. 11. True or False:If bees were to go extinct, there would be a big impact on humans since bees pollinate our crops. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 12. What level of biodiversity is most commonly equated with the overall concept of biodiversity? A) Genetic. B) Ecosystem. C) Species. D) None of the above. Show Answer Correct Answer: C) Species. 13. Number of different species living in a specific area. A) Biodiversity. B) Endemic. C) Species Diversity. D) Ecosystem Diversity. Show Answer Correct Answer: A) Biodiversity. 14. What is biological magnification? A) The introduction of new species to a habitat. B) The buildup of pollutants in the tissues of carnivores. C) The separation of an ecosystem into small areas. D) The excessive use of a species with economic value. Show Answer Correct Answer: B) The buildup of pollutants in the tissues of carnivores. 15. Which are most likely to become invasive? A) R-select, specialists. B) R-select, generalists. C) K-select, specialists. D) K-select, generalists. Show Answer Correct Answer: B) R-select, generalists. 16. The significance of the slope of regression in a species-area relationship is: A) It indicates the rate at which species richness increases with area. B) It shows the average size of species in an area. C) It measures the total number of individuals in an area. D) It determines the age of the ecosystem. Show Answer Correct Answer: A) It indicates the rate at which species richness increases with area. 17. When organisms mate with closely related family members resulting in a higher chance of offspring having harmful genetic mutations A) Bottleneck event. B) Inbreeding depression. C) Island biogeography. D) Genetic biodiversity. Show Answer Correct Answer: B) Inbreeding depression. 18. What is a new trait that increases an organism's fitness (ability to survive and reproduce)? A) Genetic diversity. B) Ecosystem diversity. C) Adaptation. D) Inbreeding depression. Show Answer Correct Answer: C) Adaptation. 19. Fill in the blank:The historic Convention on Biological Diversity ('The Earth Summit') was held in ..... in 1992. A) Rio de Janeiro. B) Geneva. C) Kyoto. D) Stockholm. Show Answer Correct Answer: A) Rio de Janeiro. 20. High levels of biodiversity tend to A) Have little to no effect on ecosystems. B) Decrease an ecosystem's resistance. C) Make an ecosystem less resilient. D) Increase the stability of an ecosystem. Show Answer Correct Answer: D) Increase the stability of an ecosystem. 21. Which one of the following is not a method of in situ conservation of biodiversity A) Sacred grove. B) Biosphere reserve. C) Wildlife sanctuary. D) Botanical garden. Show Answer Correct Answer: D) Botanical garden. 22. Reasons for preserving biodiversity include all of the following except A) Isolating unique genetic material so it can be incorporated into existing crops. B) Increasing the chances of discovering organisms with medicinal value. C) Preventing natural evolution. D) Finding new plants that can supplement the world's food supply. Show Answer Correct Answer: C) Preventing natural evolution. 23. How can zoos, botanic gardens, and wildlife parks help save species? A) (A) by preserving threatened species from destruction. B) (B) by collecting species from remote wilderness areas. C) (C) by participating in captive breeding programs. D) Both (a) and (c). Show Answer Correct Answer: D) Both (a) and (c). 24. Explain the concept of ecological balance in relation to biodiversity. A) Biodiversity has no impact on ecosystem functions. B) Ecological balance refers only to the number of species in an area. C) Ecological balance is the equilibrium in ecosystems maintained by biodiversity, which supports resilience and essential functions. D) Ecological balance is solely determined by climate change effects. Show Answer Correct Answer: C) Ecological balance is the equilibrium in ecosystems maintained by biodiversity, which supports resilience and essential functions. 25. Which of the following is an example of a conservation effort? A) Hunting animals for sport. B) Creating national parks. C) Polluting rivers. D) Cutting down forests. Show Answer Correct Answer: B) Creating national parks. ← 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 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