This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 8 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Sacred groves are found in Khasi and Jaintia Hills in Meghalaya, Aravalli Hills of Rajasthan, and Western Ghats regions of Karnataka and Maharashtra. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 2. There is a gradual process of extinction of species known as background extinction. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 3. Which is an example of an aesthetic justification for conservation? A) The need for essential life-support functions of the biosphere. B) The idea that everything has a right to exist. C) The use of the biosphere for human activities. D) The idea that the biosphere gives pleasure to humans. Show Answer Correct Answer: D) The idea that the biosphere gives pleasure to humans. 4. Column I ..... Column III.Dodo ..... (A) RauwolfiaII.Reserpine ..... (B)MauritiusIII. Botanical gardens ..... (C) Khasi and Jaintia hills.IV. Sacred forests ..... (D) Ex-situ conservation A) I-B, II-A, III-D, IV-C. B) I-D, II-A, III-B, IV-C. C) I-A, II-C, III-B, IV-D. D) I-B, II-A, III-C, IV-D. Show Answer Correct Answer: A) I-B, II-A, III-D, IV-C. 5. At a constructive plate margin A) New oceanic crust is formed. B) New continental crust is formed. C) One plate is subducted beneath another. D) Plates slide past each other, but crust is neither created nor destroyed. Show Answer Correct Answer: A) New oceanic crust is formed. 6. A diversity index of an ecosystem typically takes into account A) Genetic variability within a species. B) Community resilience and stability. C) Number of species and their abundance. D) Rte of change in species composition. Show Answer Correct Answer: C) Number of species and their abundance. 7. Biodiversity is important for ecosystem functioning because it: A) Maintains ecosystem stability and productivity. B) Reduces the number of species in an ecosystem. C) Prevents all natural disasters. D) Eliminates the need for energy flow. Show Answer Correct Answer: A) Maintains ecosystem stability and productivity. 8. The fact that organisms are adapted to survive in particular environments helps to explain why A) Captive-breeding programs are often ineffective. B) Non-native plant species never flourish in new areas. C) Habitat destruction accounts for most extinctions. D) Compromise is impossible on environmental issues. Show Answer Correct Answer: C) Habitat destruction accounts for most extinctions. 9. A declining population of one species can affect an entire what??? A) Edge effect. B) Habitat. C) Ecosystem. D) Community. Show Answer Correct Answer: C) Ecosystem. 10. Which of the following is not an invasive species A) Parthenium hysterophorus. B) Ocimum sanctum. C) Lantana camara. D) Eichhornia crassipes. Show Answer Correct Answer: B) Ocimum sanctum. 11. Differences in DNA among individuals refers to what? A) Ecosystem diversity. B) Species diversity. C) Genetic Diversity. D) None of the above. Show Answer Correct Answer: C) Genetic Diversity. 12. Which of the following diversities refers to variety as well as number of species in a given area? A) Genetic diversity. B) Species diversity. C) Ecosystem diversity. D) None of the above. Show Answer Correct Answer: B) Species diversity. 13. What type of species appear first, when the ground is simply bare rock, or bare soil after a disturbance? A) Mature species. B) Endemic species. C) Invasive species. D) Pioneer species. Show Answer Correct Answer: D) Pioneer species. 14. Which of the following is not an example of in situ biodiversity conservation? A) Biosphere reserves. B) National parks. C) Wildlife sanctuaries. D) Botanical gardens. Show Answer Correct Answer: D) Botanical gardens. 15. Which of the following phyla has largest number of species? A) Arthropoda. B) Echinodermata. C) Cephalochordata. D) Annelida. Show Answer Correct Answer: A) Arthropoda. 16. Which of the following forest is known as the lungs of the planet Earth A) Taiga forest. B) Tundra forest. C) Amazon rainforest. D) Rainforests of North East India. Show Answer Correct Answer: C) Amazon rainforest. 17. What are ecosystem services and why are they important? A) Ecosystem services are benefits provided by ecosystems that support human life and well-being, and they are crucial for environmental health and economic stability. B) Ecosystem services are only about recreational activities. C) Ecosystem services are harmful to economic growth. D) Ecosystem services are solely focused on wildlife conservation. Show Answer Correct Answer: A) Ecosystem services are benefits provided by ecosystems that support human life and well-being, and they are crucial for environmental health and economic stability. 18. These biomes are open, fairly flat areas that cover one fourth of the world's land. They can be found on every continent except Antarctica A) Taiga. B) Desert. C) Grassland. D) Tropical Rainforest. Show Answer Correct Answer: C) Grassland. 19. What are three things that create biodiversity? A) Species, genetic variation, and ecosystem. B) Mutation, disorder, regression. C) Genes, cells, traits. D) Water, land, mountains. Show Answer Correct Answer: A) Species, genetic variation, and ecosystem. 20. What is the term for a habitat being broken into smaller, separated pieces? A) Fragmentation. B) Development. C) Climate change. D) None of the above. Show Answer Correct Answer: A) Fragmentation. 21. The history convention on biological diversity held in Rio de janerio in 1992 is known as A) Cites convention. B) The Earth summit. C) G16 summit. D) MAB programme. Show Answer Correct Answer: B) The Earth summit. 22. A common type of succession that occurs where an event such as a forest fire has occurred, or a farmer's field has been abandoned is called A) Common succession. B) Primary succession. C) Secondary succession. D) Quaternary succession. Show Answer Correct Answer: C) Secondary succession. 23. What threat could Burmese pythons introduced in the Everglades pose? A) Endangered birds. B) Humans. C) Large mammals. D) Kudzu. Show Answer Correct Answer: A) Endangered birds. 24. Pollen grains can be stored for several years in liquid nitrogen having a temperature of A) -120 degree Celsius. B) -80 degree Celsius. C) -196 degree Celsius. D) -160 degree Celsius. Show Answer Correct Answer: C) -196 degree Celsius. 25. It is defined as the number of different species present in anecosystem and the relative abundance of each of those species. A) GENETIC DIVERSITY. B) SPECIES DIVERSITY. C) ECOLOGICAL DIVERSITY. D) BIODIVERSITY. Show Answer Correct Answer: B) SPECIES DIVERSITY. ← 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 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