This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 15 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Global warming can significantly be controlled by ..... A) Increasing solid waste. B) Reducing water wastage. C) Burning human-generated waste. D) Reducing fossil fuel consumption. Show Answer Correct Answer: D) Reducing fossil fuel consumption. 2. Which biome has less than 25cm of rain each year? A) Grasslands (Savanna). B) Temperate Deciduous Forest. C) Desert. D) Rainforest. Show Answer Correct Answer: C) Desert. 3. How can humans best help an endangered species avoid extinction? A) They can feed the animals. B) They can put the animals in a zoo. C) They can protect the animal's habitat. D) They can take the animal to new habitats. Show Answer Correct Answer: C) They can protect the animal's habitat. 4. All different kinds of life you'll find in one area the variety of animals, plants, fungi and even microorganisms like bacteria that make up our natural world. A) BIOLOGY. B) SOIL CONSERVATION. C) BIODIVERSITY. D) ZOOLOGY. Show Answer Correct Answer: C) BIODIVERSITY. 5. ..... the variety of organisms in a given area, the genetic variation within a population, the variety of species in a community or the variety of communities in an ecosystem. A) Species. B) Biology. C) Biodiversity. D) Diversity. Show Answer Correct Answer: C) Biodiversity. 6. Found only in specific geographic area. A) Sustainable Use. B) Endemic. C) Bioremediation. D) None of the above. Show Answer Correct Answer: B) Endemic. 7. Which applies to this environmental problem:The zebra mussel is outcompeting native species and causing damage in the Missouri River. A) Habitat Loss. B) Invasive Species. C) Pollution. D) Population Growth. E) Overconsumption. Show Answer Correct Answer: B) Invasive Species. 8. These are organisms that originated and live in an area without any human intervention A) Native. B) Endemic. C) Ecological distrubance. D) Invasive. Show Answer Correct Answer: A) Native. 9. What is a long-term consequence of threats to biodiversity? A) Increase in natural resources. B) Economic growth. C) Extinction of species and ecosystem collapse. D) Better adaptation of wildlife. Show Answer Correct Answer: C) Extinction of species and ecosystem collapse. 10. Which threat to biodiversity is the number one cause of loss of biodiversity? A) Pollution. B) Climate Change. C) Habitat destruction/loss. D) Mr. Baker (this is not the answer just saying). Show Answer Correct Answer: C) Habitat destruction/loss. 11. These are organisms that can signal a change in the biological condition of a particular ecosystem, and thus may be used to diagnose the health of an ecosystem. A) Indicator. B) Conservation. C) Biodiversity. D) Keystone. Show Answer Correct Answer: A) Indicator. 12. Another form of pollution that destroys underwater habitats for fish and other species. A) Eutrophication. B) Biological magnification. C) Fragmentation. D) Acid precipitation. Show Answer Correct Answer: A) Eutrophication. 13. Amongst the animal groups given below, which one has the highest percentage of endangered species A) Insects. B) Mammals. C) Amphibians. D) Reptiles. Show Answer Correct Answer: C) Amphibians. 14. Explain how the introduction of invasive species can lead to a decline in native biodiversity. A) Invasive species often provide new food sources for native species. B) Invasive species can outcompete native species for resources. C) Invasive species always improve the genetic diversity of an ecosystem. D) Invasive species have no impact on native species. Show Answer Correct Answer: B) Invasive species can outcompete native species for resources. 15. The complete disappearance of a species when its last member dies. A) Elimination. B) Threatened. C) Endangered. D) Extinction. Show Answer Correct Answer: D) Extinction. 16. Renewable & Nonrenewable resources are two classes of what??? A) Biodiversity. B) Natural resources. C) Habitat loss. D) Fragmentation. Show Answer Correct Answer: B) Natural resources. 17. As biodiversity decreases, the sustainability of an ecosystem ..... A) Increases. B) Decreases. C) Stays the same. D) All of these are correct. Show Answer Correct Answer: B) Decreases. 18. This is the extinction of a species one by one, not a sudden loss of many species A) Background extinction. B) Mass extinction. C) Fragmentation. D) Biotic potential. Show Answer Correct Answer: A) Background extinction. 19. Which of the following is true about nonrenewable resources? A) They can be replaced through sustainable development. B) There are plenty for people to use for a very long time. C) Using them up will help keep the environment healthy. D) They cannot be replaced after they are used up. Show Answer Correct Answer: D) They cannot be replaced after they are used up. 20. Which of the following is a climate change-related threat to biodiversity? A) Melting Arctic sea ice. B) Logging. C) Urbanization. D) Poaching. Show Answer Correct Answer: A) Melting Arctic sea ice. 21. What are biotic elements? A) Nonliving things in an ecosystem. B) Living things in an ecosystem. C) All the above. D) None of the above. Show Answer Correct Answer: B) Living things in an ecosystem. 22. What are endemic species? A) Extinct animals or plants species. B) Vulnerable Species. C) Endangered Species. D) Species which are found only in a particular area or part of a country. Show Answer Correct Answer: D) Species which are found only in a particular area or part of a country. 23. Based upon the modes of nutrition, protists are grouped into- A) Plant-like protists (algae) and ingestive, animal-like protists (protozoa); and absorptive, fungus like protists. B) Chrysophytes, Dinoflagellates and Euglenoids only. C) Slime moulds and fungi only. D) Flagellated protozoans and sporozoans only. Show Answer Correct Answer: A) Plant-like protists (algae) and ingestive, animal-like protists (protozoa); and absorptive, fungus like protists. 24. True or False:Human beings are wiping out species much faster than nature creates them, causing what scientists call a "6th extinction" A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. What is the location where two ecosystems meet and have different characteristics than the middle of each ecosystem? A) Edge habitat. B) Ecosystem junction. C) Biome border. D) Habitat intersection. Show Answer Correct Answer: A) Edge habitat. ← 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