This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 22 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The easiest component of biodiversity to measure is A) Ecosystem diversity. B) Species diversity. C) Genetic diversity. D) Ecosystem health. Show Answer Correct Answer: B) Species diversity. 2. Which of the following group exhibit more species diversity A) Gymnosperms. B) Algae. C) Bryophytes. D) Fungi. Show Answer Correct Answer: D) Fungi. 3. The natural extinction rate A) Background extinction. B) Mass extinction. C) Slow extinction. D) Speedy extinction. Show Answer Correct Answer: A) Background extinction. 4. Among the ecosystem mentioned below where can one find maximum biodiversity A) Mangroves. B) Desert. C) Coral reefs. D) Alpine meadows. Show Answer Correct Answer: C) Coral reefs. 5. Excessive use of species for economic value A) Eutrophication. B) Habitat fragmentation. C) Overexploitation. D) Natural resources. Show Answer Correct Answer: C) Overexploitation. 6. What is the main cause of extinction today? A) Overexploitation. B) Habitat loss or destruction. C) Introduction of new species. D) Biological magnification. Show Answer Correct Answer: B) Habitat loss or destruction. 7. Type of biodiversity that refers to the variety of habitats, communities, and ecological processes within and between ecosystems: A) Ecosystem diversity. B) Species diversity. C) Genetic diversity. D) None of these. Show Answer Correct Answer: A) Ecosystem diversity. 8. Which of these is NOT a factor that makes a better nature reserve? A) Smaller size. B) Less "edge". C) Clustered reserves rather than fragmented. D) Habitat corridors. Show Answer Correct Answer: A) Smaller size. 9. What is an international treaty (1990)-to help protect biodiversity 3 objectives-conserve biodiversity, sustainably use biodiversity, and equitably share the benefits from commercial use of genetic resources (pharmaceutical drugs)? A) Convention on Biological Diversity (CBD). B) United Nations Convention on the Law of the Sea (UNCLOS). C) International Convention on Climate Change (ICCC). D) Global Biodiversity Treaty (GBT). Show Answer Correct Answer: A) Convention on Biological Diversity (CBD). 10. If we accept May's global estimates. then the totalspecies that have been recorded so far are about A) 70%. B) 22%. C) 68%. D) 8.1%. Show Answer Correct Answer: B) 22%. 11. The process of subruction A) Involves the transfer of material from the crust to the asthenosphere. B) Involves the transfer of material from the mantle to the core. C) Occurs only at mid-oceanic ridges. D) Occurs at both constructive and destructive margins. Show Answer Correct Answer: A) Involves the transfer of material from the crust to the asthenosphere. 12. The 3 different types of biodiversity (in IB ESS) are; A) Genes, Species, Habitats. B) Genes, Species, Ecosystems. C) Species, Habitats, Communities. D) Biosphere, Genes, Habitats. Show Answer Correct Answer: A) Genes, Species, Habitats. 13. Tigers living in warm climates have thinner coats of fur than tigers living in cool climates. This is a result of A) Genetic diversity. B) Species diversity. C) Ecosystem diversity. D) General diversity. Show Answer Correct Answer: A) Genetic diversity. 14. The variety of ecosystems present in the biosphere is called: A) Species diversity. B) Genetic diversity. C) Ecosystem diversity. D) Biome diversity. Show Answer Correct Answer: C) Ecosystem diversity. 15. When nations ratify a ..... , they promise to uphold the laws that are described. A) Biodiversity. B) Genetic diversity. C) Mass extinction. D) Treaty. Show Answer Correct Answer: D) Treaty. 16. What is an international agreement for countries to set up agencies to monitor import and export of endangered species (as specified by IUCN Red List)? A) IUCN (International Union for Conservation of Nature). B) UNESCO (United Nations Educational, Scientific and Cultural Organization). C) CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora). D) WTO (World Trade Organization). Show Answer Correct Answer: C) CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora). 17. How does biological augmentation help ecosystems? A) By planting more trees. B) By removing all plants from a damaged area. C) By introducing new species to compete with invasive species. D) By increasing the population of endangered species. Show Answer Correct Answer: C) By introducing new species to compete with invasive species. 18. Why are tigers considered endangered? A) They are very common. B) Their habitats are being destroyed and they are hunted. C) They eat too much food. D) They live in cold places. Show Answer Correct Answer: B) Their habitats are being destroyed and they are hunted. 19. What is climate change primarily caused by? A) Plant growth. B) Animal migrations. C) Natural disasters. D) Human activities like burning fossil fuels. Show Answer Correct Answer: D) Human activities like burning fossil fuels. 20. Which is an example of bioremediation? A) Replanting trees in an area affected by acid rain. B) Using microorganisms to detoxify an oil spill. C) Enacting a law that protects endangered amphibians. D) Introducing natural predators to control a crop pest. Show Answer Correct Answer: B) Using microorganisms to detoxify an oil spill. 21. SUSTAINABLE: A) All the living and non living things in an area. B) The variety of living things on Earth. C) Actions that do not hurt the environment and save resources for the future. D) None of the above. Show Answer Correct Answer: C) Actions that do not hurt the environment and save resources for the future. 22. Species that are only found in a certain geographic area are called ..... A) Endemic. B) Epidemic. C) Invasive. D) Introduced. Show Answer Correct Answer: A) Endemic. 23. The Endangered Specie Act gives legal protection to species that are in danger or becoming extinct. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 24. The cheetah population was around 100, 000 in 1900. Today fewer than 12, 000 cheetahs remain. What type of natural resource are cheetahs considered to be? A) Nonrenewable. B) Renewable. C) Reusable. D) Sustainable. Show Answer Correct Answer: A) Nonrenewable. 25. Some species are very rare and can be found in a particular ecosystem, these species are called ..... A) Extinct species. B) Special species. C) Endemic species. D) Endangered species. Show Answer Correct Answer: C) Endemic species. ← 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