This quiz works best with JavaScript enabled. Home > Ugc Net > Paper 1 > Environment > Convention On Biodiversity – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Convention On Biodiversity Quiz 9 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The measure of whether a particular ecosystem is numerically dominated by one species or are all represented by similar numbers of individuals is known as ..... A) Species pieces. B) Species set. C) Species richness. D) Species evenness. Show Answer Correct Answer: D) Species evenness. 2. ..... regulate the amount of carbon dioxide in the air, produce oxygen as a byproduct of photosynthesis and control rainfall and soil erosion. A) Oceans. B) Mountains. C) Forrest. D) Rocks. Show Answer Correct Answer: C) Forrest. 3. Competition between two oak trees for obtaining resources is an example of ..... within species. A) Commensalism. B) Parasitism. C) Intraspecific competition. D) Mutualism. E) Interspecific competition. Show Answer Correct Answer: C) Intraspecific competition. 4. A sea otter in a kelp forest is an example of a(n) A) Symbiotic species. B) Native species. C) Invasive species. D) Keystone species. Show Answer Correct Answer: D) Keystone species. 5. Which of the following is least likely a cause of a species becoming endangered? A) Overhunting. B) Introduction of invasive species. C) Pollution. D) Habitat destruction. E) Selective breeding in zoos. Show Answer Correct Answer: E) Selective breeding in zoos. 6. The disappearance of a particular population from a given area, but not the entire species globally is known as ..... A) Excavation. B) Extrapolation. C) Extinction. D) Extirpation. Show Answer Correct Answer: D) Extirpation. 7. The passenger pigeon is an example of a(n) A) Endangered species. B) Extinct species. C) Threatned species. D) Invasive species. Show Answer Correct Answer: B) Extinct species. 8. Four of the following have resulted in an increase in hunting bushmeat; one has not. Which one is not a cause of this increase? A) Spread of AIDS. B) Overfishing of ocean fish. C) Trying to make a living supplying restaurants with exotic meat. D) Rapidly growing human population. E) Accessibility to remote areas. Show Answer Correct Answer: A) Spread of AIDS. 9. The primary causes of extinction (and endangerment and threatened status) is ..... A) Polar ice melting. B) Climate change. C) Habitat loss. D) Burning of fossil fuels. Show Answer Correct Answer: C) Habitat loss. 10. The Asian Carp and the Zebra Mussel are invasive species that are found in ..... A) The Desert. B) The Polar Caps. C) The Amazon. D) The Great Lakes. Show Answer Correct Answer: D) The Great Lakes. 11. All living and nonliving things in an environment and the many ways they interact are called ..... A) Population. B) Community. C) Ecosystem. D) Biosphere. Show Answer Correct Answer: C) Ecosystem. 12. What is the variety of genes present? A) Extinction. B) Genetic diversity. C) Bidiversity. D) Species diversity. Show Answer Correct Answer: B) Genetic diversity. 13. A species that exerts a large, positive impaction on its ecosystem is known as a: A) Keystone species. B) Indicator species. C) Invasive species. D) Poached species. Show Answer Correct Answer: A) Keystone species. 14. ..... are the first organisms to colonize an area and begin the process of ecological succession. A) Pioneer species. B) Foundational organisms. C) Primary organisms. D) Introductory organisms. Show Answer Correct Answer: A) Pioneer species. 15. Biodiversity has value regardless of its usefulness to humans. What is the biodiversity value of that? A) Practical value. B) Aesthetic value. C) Intrinsic value. D) Ecological value. Show Answer Correct Answer: C) Intrinsic value. 16. The sea otter is a(n) ..... that influences the survival of many other species in its ecosystem. A) Endangered species. B) Important animal. C) Keystone species. D) Cute furry creature. Show Answer Correct Answer: C) Keystone species. 17. A classic example of overharvesting is evident in the decline of A) Horned frog. B) Minke whale. C) Jungle fowl. D) Pygmy hippos. Show Answer Correct Answer: B) Minke whale. 18. By far, the biggest cause of biodiversity loss today is A) Climate change. B) Over-harvesting. C) Habitat change and fragmentation. D) Pollution. Show Answer Correct Answer: C) Habitat change and fragmentation. 19. Which one of these is not a benefit of Biodiversity A) Social. B) Agriculture. C) Medicine. D) Ecotoursim. E) Ecosystem Service. Show Answer Correct Answer: A) Social. 20. The study of methods for protecting ..... is called conservation biology. A) Global warming. B) Animals. C) Biodiverstiy. D) None of above. Show Answer Correct Answer: C) Biodiverstiy. 21. The number and variety of species on Earth is called A) Biodiversity. B) Germ-plam. C) Hybrid. D) Conservaton. Show Answer Correct Answer: A) Biodiversity. 22. When referring to an oceanic ecosystem, the terms sustainability and integrity mean A) Refers to destroying the habitat through human interaction. B) To maintain and keep the habitat whole or in good condition. C) Having a habitat that lasts for a very long time. D) None of above. Show Answer Correct Answer: B) To maintain and keep the habitat whole or in good condition. 23. Which of the following is not a megadiverse country? A) Canada. B) China. C) Australia. D) Malaysia. Show Answer Correct Answer: A) Canada. 24. The easiest component of biodiversity to measure is A) Species diversity. B) Ecosystem diversity. C) Ecosystem health. D) Genetic diversity. Show Answer Correct Answer: A) Species diversity. 25. Exotic or invasive species leads to all of these problems except A) Disease. B) Loss of native species. C) Loss of biodiversity. D) Increased biodiversity. Show Answer Correct Answer: D) Increased biodiversity. 26. When using a dichotomous key you always ..... A) Start with the 1st question. B) Start with the last question. C) Never repeat steps. D) Pick steps randomly. Show Answer Correct Answer: A) Start with the 1st question. 27. Which area would have less biodiversity? A) Desert. B) Forest. C) Ocean. D) Lake. Show Answer Correct Answer: A) Desert. 28. Globally, the leading cause of biodiversity loss is A) Invasive species. B) Poaching and overharvesting. C) Pollution. D) Habitat change and loss. Show Answer Correct Answer: D) Habitat change and loss. 29. The variety of life in the world or in a particular habitat or ecosystem A) Poaching. B) Carrying capacity. C) Demography. D) Biodiversity. Show Answer Correct Answer: D) Biodiversity. 30. Biodiversity is a short term for ..... A) Biological diversity. B) Biological diverse. C) Biological diversified. D) All of the above. Show Answer Correct Answer: A) Biological diversity. ← PreviousNext →Related QuizzesPaper 1 QuizzesUgc Net QuizzesConvention On Biodiversity Quiz 1Convention On Biodiversity Quiz 2Convention On Biodiversity Quiz 3Convention On Biodiversity Quiz 4Convention On Biodiversity Quiz 5Convention On Biodiversity Quiz 6Convention On Biodiversity Quiz 7Convention On Biodiversity Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books