This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 4 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the economic importance of biodiversity? A) It is essential for building infrastructure. B) It helps in weather prediction. C) It provides us with clothing, shelter, medicines, and other products. D) It is important for space exploration. Show Answer Correct Answer: C) It provides us with clothing, shelter, medicines, and other products. 2. Any natural resource available in limited amounts or replaced extremely slowly by natural processes. A) Renewable Resource. B) Nonrenewable Resource. C) All the above. D) None of the above. Show Answer Correct Answer: B) Nonrenewable Resource. 3. The practice of harvesting or hunting to such a degree that remaining individuals may not be able to replenish the population is called ..... A) Biomagnification. B) Overexploitation. C) Edge effects. D) Natural resource. Show Answer Correct Answer: B) Overexploitation. 4. The Sikhote-Alin Mountains, and the Siberian tigers living on them, are separated from other mountain regions in which the tigers could live. The mountains are an example of a(n) A) Mass extirpation. B) Invasive species. C) Mass extinction. D) Habitat fragmentation. Show Answer Correct Answer: D) Habitat fragmentation. 5. ..... is the resist environmental change without losing function. A) Resilient. B) Resistant. C) All the above. D) None of the above. Show Answer Correct Answer: B) Resistant. 6. There are so many species because: A) Evolution leads to diversity over time. B) All species are created at once. C) Species never change. D) There is only one habitat on Earth. Show Answer Correct Answer: A) Evolution leads to diversity over time. 7. What two factors would make biodiversity increase? A) Tornadoes and hurricanes. B) Large amount of producers and water. C) More predators and competition. D) The water cycle and ocean warming. Show Answer Correct Answer: B) Large amount of producers and water. 8. Some of the Cyanobacteria can fix atmospheric nitrogen in specialised cells called- A) Akinetes. B) Heterocyst. C) Homocyst. D) Nodule. Show Answer Correct Answer: B) Heterocyst. 9. Any different environmental condition occurring along an ecosystem's boundaries. A) Edge Effect. B) Biological Magnification. C) Eutrophication. D) Invasive Species. Show Answer Correct Answer: A) Edge Effect. 10. To manage, protect, and reintroduce threatened and endangered species are the goals of A) Species Survival Plans. B) Ecological research initiatives. C) Wildlife sanctuaries. D) Habitat restoration projects. Show Answer Correct Answer: A) Species Survival Plans. 11. Which term is defined by:careful preservation and protection of natural resources. A) Habitat destruction. B) Succession. C) Ecosystem diversity. D) Conservation. Show Answer Correct Answer: D) Conservation. 12. The living planet index A) Tracks species decline. B) Lists all animal species in the world. C) Describes exponential growth. D) None of the above. Show Answer Correct Answer: A) Tracks species decline. 13. Nonnative species that are transported to a new habitat. A) Introduced species. B) New species. C) Intrusive species. D) Innovative. Show Answer Correct Answer: A) Introduced species. 14. The introduction of Alien species affects biodiversity negatively if the alien species; A) Has a faster growth rate than native species. B) Outcompetes the native species for resources. C) Carries a new pathogen into the native species habitat. D) All of the above. Show Answer Correct Answer: D) All of the above. 15. What is a financial transaction in which a portion of a developing nation's foreign debt is forgiven in exchange for local investments in environmental conservation measures? A) Debt-for-nature swap. B) Debt-for-conservation deal. C) Trade-for-ecology exchange. D) Loan-for-landscape trade. Show Answer Correct Answer: A) Debt-for-nature swap. 16. ..... are large regions of the world with specific types of plants, animals, and climate patterns. A) Communities. B) Ecosystems. C) Biomes. D) Cities. Show Answer Correct Answer: C) Biomes. 17. True or False:While scientists have identified 1.7-2 million species, there are about 5-30 million in the world. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 18. Which best describes an effect of habitat fragmentation? A) Increased biodiversity. B) Decreased biodiversity. C) No effect on biodiversity. D) Less water and land pollution. Show Answer Correct Answer: B) Decreased biodiversity. 19. When forest land is converted for farming, what happens to wild animals? A) They thrive better. B) They migrate overseas. C) They seek new harbours. D) They become tame. Show Answer Correct Answer: C) They seek new harbours. 20. It is said we are currently in the ..... mass extinction. A) Sixth. B) Tenth. C) Third. D) First. Show Answer Correct Answer: A) Sixth. 21. When biodiversity increases, ..... A) Sustainability decreases. B) Sustainability remains the same. C) Sustainability also increases. D) Sustainability becomes greater by 2. Show Answer Correct Answer: C) Sustainability also increases. 22. It can be defined as the variety of different habitats, communities andecological processes. A biological community is defined by the species that occupy a particular area and the interactions between those species ..... A) GENETIC DIVERSITY. B) SPECIES DIVERSITY. C) ECOLOGICAL DIVERSITY. D) BIODIVERSITY. Show Answer Correct Answer: C) ECOLOGICAL DIVERSITY. 23. Which of the following is an example of overexploitation? A) Excessive hunting of a species for its fur. B) Planting trees in a deforested area. C) Introducing a new species to a habitat. D) Cleaning up polluted waterways. Show Answer Correct Answer: A) Excessive hunting of a species for its fur. 24. Animal cruelty means ..... A) Give then food and water. B) Love animals. C) Being unkind to animals. D) Take care your pets. Show Answer Correct Answer: C) Being unkind to animals. 25. The characters of a stable community-A. It shall not show too much variations in year to-year productivity.B. It must be either resistance or resilient to seasonal disturbance.C. It must be resistant to invasion by alien species.D. None A) A, B. B) A, B, C. C) B, C. D) D. Show Answer Correct Answer: B) A, B, C. ← 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 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 10Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books