This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Earth > Ecology – Quiz 48 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 48 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... is the conversion of organic nitrogen into ammonia A) Denitrification. B) Nitrogen Fixation. C) Assimilation. D) Ammonification. Show Answer Correct Answer: D) Ammonification. 2. What is the defintion of an organism? A) A living thing. B) A single organism. C) All the organisms of one species in a habitat. D) All the different species living in a habitat. Show Answer Correct Answer: A) A living thing. 3. All of the deserts around the world can be considered one ..... A) Biosphere. B) Ecosystem. C) Community. D) Biome. Show Answer Correct Answer: D) Biome. 4. Quality assurance / quality control (qa/qc) A) Radioactive waste. B) Reuse, recovery, recycling. C) Quality assurance/quality control. D) Ravine. Show Answer Correct Answer: C) Quality assurance/quality control. 5. Which biome consists of warm weather year-round, a dry season and a rainy season, and diverse trees, shrubs, and grasses? A) Tropical rainforest. B) Temperate grassland. C) Savanna. D) Desert. Show Answer Correct Answer: C) Savanna. 6. When a population grows rapidly then reaches its carrying capacity, it is this type of growth model A) Hyperbole. B) Bell curve. C) Simplistic. D) Logistic. Show Answer Correct Answer: D) Logistic. 7. Barnacles create home sites on whales. This relationship neither helps or harms the whale A) Predation. B) Mutualism. C) Commensalism. D) Competition. E) Parasitism. Show Answer Correct Answer: C) Commensalism. 8. The reestablishment of a damaged ecosystem in an area where the soil is intact is called ..... A) Primary succession. B) Pioneer succession. C) Secondary succession. D) Symbiotic succession. Show Answer Correct Answer: C) Secondary succession. 9. What is the foundation of energy for ALL food webs, ocean biomes included? A) Oxygen. B) Animals. C) Sun. D) Clouds. Show Answer Correct Answer: C) Sun. 10. Consists of all life on earth and all parts of earth in which life exists, including land, water and the atmosphere. A) Ecology. B) Ecosystems. C) Habitat. D) Biomes. Show Answer Correct Answer: A) Ecology. 11. Occupational Illness A) Peninsula. B) Oil slick. C) Occupational disease. D) Pesticide. Show Answer Correct Answer: C) Occupational disease. 12. What is a Herbivores? A) A animal that eats plant. B) A plant that eats meat. C) A plant that makes its own food. D) A animal that eats meat. Show Answer Correct Answer: A) A animal that eats plant. 13. The acidity of a local stream would most likely be affected by A) A new source of air pollution. B) A new predator species being introduced to theecosystem. C) A decrease in the amount of sunlight that reaches the stream. D) A change in the percentage of decomposers livingin the stream. Show Answer Correct Answer: A) A new source of air pollution. 14. What is ozone depletion caused by? A) By acid rains. B) By melting of the ice near The North and South Poles. C) By pollution of the air by CFCs. D) None of above. Show Answer Correct Answer: C) By pollution of the air by CFCs. 15. Respiration is the process by which animals take in ..... and release ..... A) Photosynthesis, air. B) Oxygen. C) Carbon, oxygen. D) Oxygen, carbon dioxide. Show Answer Correct Answer: D) Oxygen, carbon dioxide. 16. The factors in an ecoysystem that have never had the ability to live. A) Abiotic Factor. B) Community. C) Biome. D) Biotic Factor. Show Answer Correct Answer: A) Abiotic Factor. 17. An ecosystem is broken up into several smaller sections due to human activities ( building roads and deforestation ). This is an example of A) Global warming. B) Monoculture. C) Overexplotation. D) Habitat fragmentation. Show Answer Correct Answer: D) Habitat fragmentation. 18. What type of symbiosis? * Human intestine provides food for bacteria that live inside digestive system *Beneficial bacteria live in the intestine of humans and help digest cellulose from plants which humans don't have the enzymes to break down. A) Predation. B) Mutualism. C) Parasitism. D) Commensalism. Show Answer Correct Answer: B) Mutualism. 19. The amount of mater that cycles through a food web A) Increases. B) Decreases. C) Stays constant. D) Changes. Show Answer Correct Answer: C) Stays constant. 20. Recently, a family of bobcats moved into an area with a large rabbit population. What changes may occur in the ecosystem? A) The rabbit population may increase first, then decrease. B) The rabbit population may increase. C) The rabbit population will remain the same. D) The rabbit population may decrease. Show Answer Correct Answer: D) The rabbit population may decrease. 21. A biological pyramid is NOT considered to be a pyramid of A) Numbers. B) Species. C) Energy. D) Biomass. Show Answer Correct Answer: B) Species. 22. Which of these activities is most likely to have a negative impact on Earth's environment? A) Planting Trees. B) Constructing highways. C) Recycling paper and plastic. D) None of the above. Show Answer Correct Answer: B) Constructing highways. 23. Always put batteries into special (pojemniki). A) Bins. B) Landfills. C) Tanks. D) Containers. Show Answer Correct Answer: D) Containers. 24. Photosynthesis uses energy from the ..... to make chemical energy. A) Soil. B) Sun. C) More destructive. D) Radiation. Show Answer Correct Answer: B) Sun. 25. Why are fungi and bacteria important in a food chain or food web? A) They are an important food source for primary consumers. B) They are important food sources for secondary consumers. C) They help to recycle nutrients back into the soil. D) They are producers. Show Answer Correct Answer: C) They help to recycle nutrients back into the soil. 26. Transpiration occurs when plants release water vapor through their stomata. A) True. B) False. Show Answer Correct Answer: A) True. 27. What process uses energy from the sun to convert carbon dioxide into carbohydrates? A) Carbon Fixation. B) Photosynthesis. C) Cellular Respiration. D) Combustion. Show Answer Correct Answer: B) Photosynthesis. 28. Herbivores like to eat? A) Meat. B) Grass. C) Meat and grass. D) Pizza. Show Answer Correct Answer: B) Grass. 29. Many of the animals are ..... A) Herbivores. B) Grasses. C) Trees. D) Antarctica. Show Answer Correct Answer: A) Herbivores. 30. The position an organism occupies in a food chain is its ..... A) Habitat. B) Trophic Level. C) Ecosystem. D) Niche. Show Answer Correct Answer: B) Trophic Level. 31. At this range particular system works at maximum level and gives maximum products. A) Carrying Capacity. B) Limiting factor. C) Optimum range. D) Tolerance range. Show Answer Correct Answer: C) Optimum range. 32. If there is more food than usual in an ecosystem, then the population will mostly likely ..... A) Stay the same. B) Decrease. C) Increase. D) None of above. Show Answer Correct Answer: C) Increase. 33. An example of a functional adaptation is ..... A) Arctic fox has white fur. B) Swallows migrate during the winter months. C) Camels conserve water by producing very little sweat. D) None of above. Show Answer Correct Answer: C) Camels conserve water by producing very little sweat. 34. What are areas where freshwater meets saltwater called? A) Wetlands. B) Estuaries. C) Coastal byways. D) Intertidal zones. Show Answer Correct Answer: B) Estuaries. 35. Individuals in a population that have the traits needed to survive in the environment get to survive and reproduce. Their offspring inherit those traits. Over time, a greater percentage of the population will have those successful traits. A) Artificial selection. B) Selective breeding. C) Natural selection. D) Mutations. Show Answer Correct Answer: C) Natural selection. 36. Plants get their energy from the sun, this means they are ..... A) Consumers. B) Producers. Show Answer Correct Answer: B) Producers. 37. Succession that occurs in an area with no soil A) Primary succession. B) Ecological succession. C) Secondary succession. D) Pioneer specs. Show Answer Correct Answer: A) Primary succession. 38. If an organism cannot adapt or migrate when a dramatic change occurs, it may die. A) True. B) False. Show Answer Correct Answer: A) True. 39. True or False:Symbiosis only works with animals. A) True. B) False. Show Answer Correct Answer: B) False. 40. How much energy would be at the primary consumer level of an energy pyramid if there were 10, 000 J of energy at the producer level of the pyramid? A) 20, 000 J. B) 100, 000 J. C) 100 J. D) 1, 000 J. Show Answer Correct Answer: D) 1, 000 J. 41. A place where an organism gets everything it needs to survive. A) Habitat. B) Ecosystem. C) Population. D) Community. Show Answer Correct Answer: A) Habitat. 42. Which example is a form of precipitation? A) Hail. B) Dew. C) Fog. D) Frost. Show Answer Correct Answer: A) Hail. 43. Sea anemones protect clownfish from predators, while clownfish eat things that harm the sea anemones. This symbiotic relationship is an example of A) Commensalism. B) Mutualism. C) Parasitism. D) None of above. Show Answer Correct Answer: B) Mutualism. 44. Which of the following is an abiotic factor that could possibly decrease a population if it drastically changes? A) Competition. B) Temperature. C) Predator-prey relationships. D) Disease. Show Answer Correct Answer: B) Temperature. 45. A group of one kind of organism living in the same area. A) Community. B) Biosphere. C) Population. D) Ecosystem. Show Answer Correct Answer: C) Population. 46. An increase in Earth's average temperature from the build up of carbon dioxide and other greenhouse gases in the atmosphere is called A) Global warming. B) Ozone depletion. C) Eutrophication. D) Transpiration. Show Answer Correct Answer: A) Global warming. 47. Anything that would keep a population from growing larger. A) Symbiosis. B) Limiting Factors. C) Carrying capacity. D) None of above. Show Answer Correct Answer: B) Limiting Factors. 48. An aquatic food chain is shown below.Algae $\rightarrow$ Zooplankton $\rightarrow$ Minnow $\rightarrow$ Perch $\rightarrow$ HawkWhat would most likely result if a waterborne bacterium caused the death of most of the minnow population? A) Decrease in both algae and zooplankton populations. B) Increase in both zooplankton and perch populations. C) Increase in both perch and hawk population. D) Decrease in both perch and hawk population. Show Answer Correct Answer: D) Decrease in both perch and hawk population. 49. A ..... cannot make its own energy and eats only plants for their energy. A) Producer. B) Tertiary Consumer. C) Secondary Consumer. D) Primary consumer. Show Answer Correct Answer: D) Primary consumer. 50. Which of the following is an example of an abiotic factor of an ecosystem? A) Plants. B) Fungi. C) Animals. D) Sunlight. Show Answer Correct Answer: D) Sunlight. 51. The study of how living things interact with each other and their environment is: A) Ecology. B) Homeostasis. C) Circulation. D) DNA. Show Answer Correct Answer: A) Ecology. 52. Bees and flowers have evolved to need one another. Flowers receive pollination from bees as they fly from flower to flower gathering nectar. This is an example of ..... A) Parasitism. B) Mutualism. C) Commensalism. D) Predation. Show Answer Correct Answer: B) Mutualism. 53. What is a model that represents or describes the relationships between the components of an ecological system? A) Ecological model. B) Environmental model. C) Ecosystem model. D) None of above. Show Answer Correct Answer: A) Ecological model. 54. True or False. The nitrogen in the atmosphere is in the right form for living things to use. A) False. B) True. Show Answer Correct Answer: A) False. 55. Individuals of a population who move into an area. A) Immigration. B) Emigration. C) Mastication. D) Litigation. Show Answer Correct Answer: A) Immigration. 56. How do adaptations help animals? A) To hide from predators. B) To hunt for food. C) To survive in their habitats. D) All of these are correct. Show Answer Correct Answer: D) All of these are correct. 57. What is the meaning of the word population? A) Every living thing that lives on this planet. B) Organisms that live in the same place. C) All living things that live everywhere in the same environment. D) Living things of the same kind live in the same place in a period of time. Show Answer Correct Answer: D) Living things of the same kind live in the same place in a period of time. 58. What percentage of energy is used up by the organism at any level of the energy pyramid for everyday life processes? A) 25%. B) 50%. C) 90%. D) 10%. Show Answer Correct Answer: C) 90%. 59. What's the best way to reduce waste? A) Always recycle. B) Buy less. C) Shop for discounted item. D) None of the given. Show Answer Correct Answer: B) Buy less. 60. A ..... is the same species living together in an area. A) Ecosystem. B) Population. C) Organism. D) Community. Show Answer Correct Answer: B) Population. ← PreviousNext →Related QuizzesScience QuizzesGeneral Knowledge QuizzesEcology Quiz 1Ecology Quiz 2Ecology Quiz 3Ecology Quiz 4Ecology Quiz 5Ecology Quiz 6Ecology Quiz 7Ecology Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books