This quiz works best with JavaScript enabled. Home > Agriculture > Ecology Environment > Studies > Ecology And Environment – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology And Environment Quiz 3 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following biomes is characterized by low rainfall, freezing temperature and the presence of polar bears and scarce vegetation? A) Tundra. B) Temperate forest. C) Desert. D) Taiga. Show Answer Correct Answer: A) Tundra. 2. Only this much energy passes along in feeding relationships: A) 100%. B) 15%. C) 10%. D) 5%. Show Answer Correct Answer: C) 10%. 3. Which human activity would most likely deplete nonrenewable resources? A) Useof natural enemies to eliminate insect pests. B) Developmentof wildlife refuges. C) Increased use of fossil fuels. D) Governmentalrestriction of industrial pollution. Show Answer Correct Answer: C) Increased use of fossil fuels. 4. An increase in chlorofluorocarbons and aerosols are most likely to result in an increase in what? A) Global warming. B) Ozone depletion. C) Ocean acidification. D) Acid rain. Show Answer Correct Answer: B) Ozone depletion. 5. In any food chain or web, the herbivores get only 10% of the energy contained in the plant A) Rule of 10. B) Rule of 90. C) 50-50. D) Law of the land. Show Answer Correct Answer: A) Rule of 10. 6. Approximately what percentage of Earth's water is SALT water? A) 3%. B) 97 %. C) 30%. D) 71%. Show Answer Correct Answer: B) 97 %. 7. What trophic level do Herbivores occupy-ex:mouse eating seeds A) Primary consumers. B) Tertiary consumers. C) Producers. D) Secondary consumers. Show Answer Correct Answer: A) Primary consumers. 8. Using economic considerations of resource use, the law of supply and demand describes the A) Availability of abundant resources. B) Relationshop between the availabilty and worth of resources. C) Worth of nonrenewable. D) Reduced demand resulting from lack of available resources. Show Answer Correct Answer: B) Relationshop between the availabilty and worth of resources. 9. AN EXAMPLE FOR TERRESTRIAL GASTROPOD A) SEA HARE. B) GARDEN SNAIL. C) NUDIBRUNCH. D) NONE OF THE ABOVE. Show Answer Correct Answer: B) GARDEN SNAIL. 10. This biome covers 70% of the Earth's surface. A) Boreal forest (Taiga). B) Temperate deciduous forest. C) Ocean. D) Rainforest. Show Answer Correct Answer: C) Ocean. 11. Made up of a community AND the abiotic environment. All the living and nonliving things in the same area. A) Population. B) Biome. C) Community. D) Ecosystem. E) Biosphere. Show Answer Correct Answer: D) Ecosystem. 12. A cost-benefit analysis is A) A study of the factors that influence decisions of producers and consumers. B) An economy in which the government decides what is manufactured. C) A balance between the supply and demand of a product. D) The comparison between the effects of an environmental decision. Show Answer Correct Answer: D) The comparison between the effects of an environmental decision. 13. Which is the simplest level of organization within the environment? A) Organism. B) Population. C) Community. D) Cell. Show Answer Correct Answer: A) Organism. 14. When ecosystems experience disturbances, the effects can be wide ranging. Consider a marine ecosystem where all of the sharks are lost due to over fishing. What chain of events could then follow this disturbance? A) Species that were food for sharks would increase in population size. B) Populations of other predators would immediately increase. C) The remaining fish species would also decline. D) Populations of other large fish would increase. Show Answer Correct Answer: A) Species that were food for sharks would increase in population size. 15. Humans have an effect on ecosystems when they use native grasslands or forested areas for farming or urban use. One negative effect of these changes on the ecosystem is that there will be A) Increased food production. B) Successful economic growth. C) More homes. D) Less biodiversity. Show Answer Correct Answer: D) Less biodiversity. 16. Which biome features permanently frozen soil called permafrost? A) Tundra. B) Coniferous Forest. C) Deciduous Forest. D) Desert. Show Answer Correct Answer: A) Tundra. 17. The amount of energy that usually transfers from one trophic level to the next ..... A) 80%. B) 50%. C) 20%. D) 10%. Show Answer Correct Answer: D) 10%. 18. A stable ecological community that has reached equilibrium A) Secondary succession. B) Climax community. C) Pioneer speciles. D) Ecological succession. Show Answer Correct Answer: B) Climax community. 19. Scientists studying two adjacent ecosystems observe different varieties of organisms in the two areas. All of the following factors would contribute to the differing varieties of organisms in these two habitats EXCEPT- A) Wind. B) Water resources. C) Soil type. D) Climate. Show Answer Correct Answer: A) Wind. 20. Reasons that viruses are considered to be nonliving is because A) They are not cellular. B) They cannot reproduce on their own. C) They cannot make proteins. D) All of the above. Show Answer Correct Answer: D) All of the above. 21. The number of individuals in a given area is the population's A) Range. B) Density. C) Distribution. D) None of above. Show Answer Correct Answer: B) Density. 22. A powerful or major influence or effect A) Impact. B) Big Deal. C) Influential. D) Destructive. Show Answer Correct Answer: A) Impact. 23. Which statement about human population growth is LEAST likely to be correct? A) Modern medicine has allowed human populations to extend well past the earth's carrying capacity, as more people survive for longer. B) Technological advances in farming and medicine will allow human populations to continue to grow without natural limits. C) Advances in agriculture have allowed the world's food supply to expand dramatically in the last 100 years. D) Worldwide, the birthrate of humans is higher than the deathrate. Show Answer Correct Answer: B) Technological advances in farming and medicine will allow human populations to continue to grow without natural limits. 24. An organism that makes a home for itself in a new place is called a (an) A) New species. B) Endangered species. C) Exotic species. D) Strange species. Show Answer Correct Answer: C) Exotic species. 25. Why might an introduced animal species overrun native species in an ecosystem? A) . Its population size is smaller than those of native species. B) . It is more energy efficient, so it eats less food. C) It is a predator of the native species. D) It often has no natural enemies. Show Answer Correct Answer: D) It often has no natural enemies. 26. Evidence of excessive fertilizer use A) Ecological succession. B) Old field succession. C) Secondary succession. D) Algal bloom. Show Answer Correct Answer: D) Algal bloom. 27. An atmospheric gas that increases when fossil fuels are burned A) Water vapor. B) Oxygen. C) Carbon dioxide. D) Nitrogen. Show Answer Correct Answer: C) Carbon dioxide. 28. In an underdeveloped area, many infants and children die due to waterborne disease and the lack of freshwater. In this case, fresh water would be considered: A) A population control. B) A sustainable resources. C) A limiting factor. D) Carrying capacity. Show Answer Correct Answer: C) A limiting factor. 29. A population is ..... A) A group of one species in one area. B) Multiple species that live in one area. C) All of the living and nonliving things in an area. D) None of these. Show Answer Correct Answer: A) A group of one species in one area. 30. This biome generally has 4 seasons. A) Temperate deciduous forest. B) Desert. C) Boreal forest (Taiga). D) Arctic tundra. Show Answer Correct Answer: A) Temperate deciduous forest. ← PreviousNext →Related QuizzesEcology Environment QuizzesAgriculture QuizzesEcology And Environment Quiz 1Ecology And Environment Quiz 2Ecology And Environment Quiz 4Ecology And Environment Quiz 5Ecology And Environment Quiz 6Ecology And Environment Quiz 7Ecology And Environment Quiz 8Ecology And Environment Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books