This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 23 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 23 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is characterised by presence of less seasonal variations? A) Tropics. B) Temperate. C) Coniferous forests. D) Deserts. Show Answer Correct Answer: A) Tropics. 2. The relation between species richness and area is described On a logarithmic scale by the equation (where S = species Richness, A = area, Z = slope of the line (regressionCoefficient), C = Y-intercept) A) Log S = Log C. B) Log S = log C + Z log A. C) Log S = log C-Z log A. D) Log S = Z log A. Show Answer Correct Answer: B) Log S = log C + Z log A. 3. The gradual process of species becoming extinct A) Overexploitation. B) Mass extinction. C) Eutrophication. D) Background extinction. Show Answer Correct Answer: D) Background extinction. 4. What is background extinction? A) The process of species becoming extinct gradually. B) The extinction of a large percentage of species in a short period. C) The introduction of new species to a habitat. D) The separation of an ecosystem into small areas. Show Answer Correct Answer: A) The process of species becoming extinct gradually. 5. The one horned rhinoceros is specific to which of the following sanctuary A) Bhitar kanika. B) Bandipur. C) Kaziranga. D) Corbett park. Show Answer Correct Answer: C) Kaziranga. 6. Nuclear is A) Nonrenewable. B) Renewable. C) All the above. D) None of the above. Show Answer Correct Answer: A) Nonrenewable. 7. Wildlife is A) All animal of reserve forests. B) All vertebrates of reserve forests. C) All animals and plants of reserve forests. D) All biota excluding man, domestic animals and culti-Vated crops. Show Answer Correct Answer: D) All biota excluding man, domestic animals and culti-Vated crops. 8. How does deforestation impact biodiversity? A) It increases biodiversity by creating new habitats. B) It has no significant impact on biodiversity. C) It decreases biodiversity through the loss of habitat. D) It enhances air quality which in turn helps biodiversity.TagsDOK Level 2:Skill/Concept. Show Answer Correct Answer: C) It decreases biodiversity through the loss of habitat. 9. What is a US act (1900) that prohibits transport of illegally harvested game animals (mostly birds and animals) across state lines-also includes plants? A) Smith Act. B) Jones Act. C) Johnson Act. D) Lacey Act. Show Answer Correct Answer: D) Lacey Act. 10. The use of living natural organisms to detoxify a polluted area? A) Biological Augmentation. B) Introduced Species. C) Bioremediation. D) None of the above. Show Answer Correct Answer: C) Bioremediation. 11. Which of the following are placed under Protista- A) Chryosophytes and Dinoflagellates. B) Euglenoids. C) Slime moulds and protozoans. D) All. Show Answer Correct Answer: D) All. 12. Which of the following forbids the U.S. government and its citizens from harming endangered or threatened species and their habitats? A) The Environmental Protection Agency. B) Species Survival Plan. C) The Endangered Species Act. D) The Convention on International Trade in Endangered Species. Show Answer Correct Answer: C) The Endangered Species Act. 13. Illegal hunting for profit is called A) Sport hunting. B) Poaching. C) Commercial hunting. D) Subsistence hunting. Show Answer Correct Answer: B) Poaching. 14. Which of the following is an example of a method for managing whole ecosystems and habitats? A) Captive breeding. B) Cloning. C) Species survival plans. D) Mapping biodiversity hotspots. Show Answer Correct Answer: D) Mapping biodiversity hotspots. 15. An ecosystem is more resilient if it has more ..... A) Biodiversity. B) Animals. C) Invasive species. D) None of the above. Show Answer Correct Answer: A) Biodiversity. 16. This occurs when organisms move out of an ecosystem that is in chaos. A) Immigration. B) Emmigration. C) Birth Rate. D) Death Rate. Show Answer Correct Answer: B) Emmigration. 17. Why are orangutans losing their habitats and becoming endangered. A) Phosphates. B) Palm oil. C) Primary succession. D) Poaching. Show Answer Correct Answer: B) Palm oil. 18. What role do zoos and botanical gardens play in biodiversity conservation? A) Selling endangered species for profit. B) Destroying natural habitats. C) Using animals and plants for entertainment purposes only. D) Preserving and protecting endangered species, conducting research, and educating the public. Show Answer Correct Answer: D) Preserving and protecting endangered species, conducting research, and educating the public. 19. The Earth's mantle is A) Beneath the crust and the core. B) Between the core and the crust. C) Above the crust but beneath the core. D) Above both the core and the crust. Show Answer Correct Answer: B) Between the core and the crust. 20. Water pollution from nitrogen-rich and phosphorous-rich substances flowing into waterways, causing algal overgrowth. A) Edge Effect. B) Biological Magnification. C) Eutrophication. D) Invasive Species. Show Answer Correct Answer: C) Eutrophication. 21. Extinction describes the disappearance of a(n) ..... from an ecosystem. A) Organism. B) Organism from the biosphere. C) Species from an ecosystem. D) Species from the biosphere. Show Answer Correct Answer: C) Species from an ecosystem. 22. Pollutants in the water cycle can cause rain to A) Become more acidic than normal. B) Change from basic to acidic. C) Be saturated with particulates. D) Fall heavily and cause flooding. Show Answer Correct Answer: A) Become more acidic than normal. 23. The three important components of biodiversity are: A) Genetic diversity, species diversity, ecosystem diversity. B) Species diversity, climate diversity, population diversity. C) Genetic diversity, habitat diversity, food diversity. D) Ecosystem diversity, water diversity, energy diversity. Show Answer Correct Answer: A) Genetic diversity, species diversity, ecosystem diversity. 24. Spanish brown bear lives in ..... A) In mountains and forest. B) In the sea. C) In trees in forest. D) In my house. Show Answer Correct Answer: A) In mountains and forest. 25. India has more than ..... genetically different strains of rice. A) 50, 000. B) 5, 000. C) 500. D) 15, 000. Show Answer Correct Answer: A) 50, 000. ← 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