This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Earth > Ecology – Quiz 23 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 23 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is formed during primary succession that doesn't need to be formed during secondary succession? A) Soil. B) Climax community. C) Pioneer species. D) Lichens. Show Answer Correct Answer: A) Soil. 2. Is a fern an abiotic or biotic factor? A) Abiotic. B) Biotic. Show Answer Correct Answer: B) Biotic. 3. Energy conservation means ..... A) Using fossil fuels to produce energy. B) Burning a fuel to release energy. C) Slowing down a chemical change. D) Reducing energy use. Show Answer Correct Answer: D) Reducing energy use. 4. The conversion of Nitrites to Nitrates A) Nitrification. B) Denitrification. C) Nitrogen Fixation. D) None of above. Show Answer Correct Answer: A) Nitrification. 5. What type of invasive control involves the introduction of the Cane Toad to Australia to help fight the cane beetle population? A) Kinetic Control. B) Mechanical Control. C) Chemical Control. D) Biological Control. Show Answer Correct Answer: D) Biological Control. 6. All Drones are Male? A) Sometimes. B) Yes and no. C) Yes. D) No. Show Answer Correct Answer: C) Yes. 7. Which of the following is a characteristic of tropical rain forests? A) Fluctuation in temperature. B) Few organisms. C) Poor soil. D) Four seasons. Show Answer Correct Answer: C) Poor soil. 8. The producer includes the following A) Viruses. B) Animals. C) Green plants. D) Microorganisms. E) Herbivorous animals. Show Answer Correct Answer: C) Green plants. 9. A tapeworm living in a 6th grade students intestines. A) Mutualism. B) Commensalism. C) Parasitism. D) None of above. Show Answer Correct Answer: C) Parasitism. 10. Physical location where an organism lives A) Adaptation. B) Ecosystem. C) Niche. D) Habitat. Show Answer Correct Answer: D) Habitat. 11. Choose the right meaning:throw A) To save. B) To throw away. C) Pick. D) None of above. Show Answer Correct Answer: B) To throw away. 12. We need nitrogen to make A) Proteins. B) Enzymes. C) Cells. D) All of these. Show Answer Correct Answer: D) All of these. 13. Which organism have the ability to make energy-rich organic molecules (glucose) from inorganic raw materials available in the environment? A) Primary consumers. B) Autotrophs. C) Heterotrophs. D) Decomposers. Show Answer Correct Answer: B) Autotrophs. 14. Which of these is NOT a Primarily human impact on the environment? A) Tourism. B) Deforestation. C) Fire. D) Poaching. Show Answer Correct Answer: C) Fire. 15. A group of ecosystems with similar climates and organisms A) Ecosystem. B) Biome. C) Population. D) Biosphere. Show Answer Correct Answer: B) Biome. 16. Change the O2 and sugars into CO2, H2O, and ATP A) Mitochondria. B) Mitsubishi. C) Omnivore. D) Chloroplast. Show Answer Correct Answer: A) Mitochondria. 17. In most ecosystems, the original source of energy is the A) Producer. B) Consumer. C) Carbohydrate. D) Sun. Show Answer Correct Answer: D) Sun. 18. Animals in the highest trophic level of a food chain will often be the largest in body size but will be few in numbers. What accounts for the small numbers? A) Food eaten by animals at the highest trophic level has a lower energy content per gram. B) Energy losses through the food chain. C) Conversion of heat energy into chemical energy. D) Biomass of producers is small. Show Answer Correct Answer: B) Energy losses through the food chain. 19. Ethan, Benjamin, and Aiden are on a field trip to a nature reserve. They are asked to identify abiotic factors in their surroundings. What are they looking for? A) All nonliving things in the environment. B) Sunlight. C) Fungi. D) Animals. Show Answer Correct Answer: A) All nonliving things in the environment. 20. The physical and chemical characteristics of the environment A) Producer. B) Abiotic factor. C) Niche. D) Biotic factor. Show Answer Correct Answer: B) Abiotic factor. 21. A type of symbiosis in which one species benefits and the other is harmed or killed ..... A) Mutualism. B) Commensalism. C) Parasitism. D) None of above. Show Answer Correct Answer: C) Parasitism. 22. What type of symbiotic relationship occurs when one organism benefits and the other is unaffected? A) Parasitism. B) Communism. C) Mutualism. D) Commensalism. Show Answer Correct Answer: D) Commensalism. 23. Sharks are messy eaters that swim around all day with a small Remora fish attached to their undersides. The Remora eats any food that the shark may drop. The Remora does nothing for the shark. This is an example of ..... A) Commensalism. B) Mutualism. C) Parasitism. D) Competition. Show Answer Correct Answer: A) Commensalism. 24. An isopod attaches itself to the tongue of a fish and then eats the food the fish tries to consume. This is an example of ..... A) Mimicry. B) Commensalism. C) Parasitism. D) Mutualism. Show Answer Correct Answer: C) Parasitism. 25. Which category of organism cannot make its own food? A) Heterotroph. B) Autotroph. Show Answer Correct Answer: A) Heterotroph. 26. Which biome is shown in the picture? A) Taiga. B) Temperate Grassland. C) Desert. D) Tundra. Show Answer Correct Answer: B) Temperate Grassland. 27. Organisms that only eat producers A) Scavengers. B) Carnivores. C) Herbivores. D) Omnivores. Show Answer Correct Answer: C) Herbivores. 28. Organisms use nitrogen to form A) Carbohydrates and lipids. B) Proteins and lipids. C) Lipids and nucleic acids. D) Proteins and nucleic acids. Show Answer Correct Answer: D) Proteins and nucleic acids. 29. Organisms that get their food directly from plants. A) Insectivores. B) Herbivores. C) Producers. D) Carnivores. Show Answer Correct Answer: B) Herbivores. 30. Plants are very resistant to ..... in the grasslands. A) Drought. B) Trees. C) Herbivores. D) Fast. Show Answer Correct Answer: A) Drought. 31. All organisms of the same species in an ecosystem. A) Population. B) Family. C) Lucky. D) Community. Show Answer Correct Answer: A) Population. 32. In an energy pyramid, A) The organisms in each level eat those in the level below them. B) The amount of energy increases as you move up each level. C) Producers are at the top. D) The smallest organisms are at the top. Show Answer Correct Answer: A) The organisms in each level eat those in the level below them. 33. Which one is NOT a biotic factor? A) Penguin. B) Plant. C) Human. D) Water. Show Answer Correct Answer: D) Water. 34. What is a Ecosystem A) Rutherford. B) Chicken dance. C) Jamaica. D) A biological community of interacting organisms and their physical environment. E) The study of environments. Show Answer Correct Answer: D) A biological community of interacting organisms and their physical environment. 35. What is the name of the way organisms communicate by producing their own chemical products from their bodies: A) Zoocharia. B) Commensalism. C) Allelopathy. D) Symbiosis. E) Neutralism. Show Answer Correct Answer: C) Allelopathy. 36. What factor of climate is dependent on how high you live above sea level? A) Elevation. B) Oceans. C) Topography. D) Latitude. E) Wind. Show Answer Correct Answer: A) Elevation. 37. Animals get energy from eating other animals. In what ways do they use this energy? A) Store the energy. B) Use it to stay warm. C) Reproduce. D) All of these. Show Answer Correct Answer: D) All of these. 38. What percent of energy is transferred from consumer to consumer in a food chain? A) 50%. B) 90%. C) 25%. D) 10%. Show Answer Correct Answer: D) 10%. 39. Gas that makes up 78% of our atmosphere. A) Hydrogen. B) Nitrogen. C) Carbon Dioxide. D) Oxygen. Show Answer Correct Answer: B) Nitrogen. 40. Is a dog an.....? A) ABiotic factor. B) Biotic factor. Show Answer Correct Answer: B) Biotic factor. 41. A flea on a dog is a ..... A) Plastic Bug. B) Parasite. C) Bug. D) Annoyance. Show Answer Correct Answer: B) Parasite. 42. The roadrunner and the coyote relationship is that of? A) Mutualism. B) Commensalism. C) Parasitism. D) Parallelism. Show Answer Correct Answer: C) Parasitism. 43. An organism that breaks down dead organic matter and returns to the soil is called A) Carnivore. B) Herbivore. C) Producer. D) Decoposer. Show Answer Correct Answer: D) Decoposer. 44. What is the total amount of biotic material within an ecosystem? A) Energy flow. B) Biomass. C) Trophic level. D) Biodiversity. Show Answer Correct Answer: B) Biomass. 45. Animals from two different species utilize the same source of nutrition in one area. It is most accurate to say that the animals ..... A) Will learn to get along. B) Will compete for food. C) Will die because there will not be enough food for both of them. D) Will learn to eat different foods. Show Answer Correct Answer: B) Will compete for food. 46. Some organisms use ..... to make food from chemicals. A) Synthesis. B) Photosynthesis. C) Chemosynthesis. D) Bioluminescence. Show Answer Correct Answer: C) Chemosynthesis. 47. The goat has it on his head A) Back. B) Hat. C) Horn. D) Leg. Show Answer Correct Answer: C) Horn. 48. How is water an important abiotic factor? A) You drink it and hydrate. B) Animals live in it. C) Plants need it to grow. D) Allows you to carry out life proecess. Show Answer Correct Answer: D) Allows you to carry out life proecess. 49. How many mm is 20 cm? A) 0.2. B) 0.25. C) 200. D) 2000. Show Answer Correct Answer: C) 200. 50. "Nature's recyclers" are A) Decomposers. B) Omnivores. C) Producers. D) Predators. Show Answer Correct Answer: A) Decomposers. 51. Businesses in a ..... have the right to produce any goods they want. A) Free enterprise system. B) Demand. C) Interdependent. D) Globalization. Show Answer Correct Answer: A) Free enterprise system. 52. Which of the following describes an interaction in which one organism kills and eats another? A) Competition. B) Symbiosis. C) Mutualism. D) Predation. Show Answer Correct Answer: D) Predation. 53. How do nitrogen compounds created by lightning get into the soil? A) Decomposers break it down. B) Rain washes compounds out of air. C) Bacteria in the soil. D) Flows through the food web. Show Answer Correct Answer: B) Rain washes compounds out of air. 54. Factors that affect populations regardless of their size are called ..... limiting factors. A) Density independent. B) Extreme. C) Biodiversity. D) Density dependent. Show Answer Correct Answer: A) Density independent. 55. People need energy to ..... A) Sleep. B) Drink. C) Eat. D) Do things. Show Answer Correct Answer: D) Do things. 56. Short coniferous trees, short growing season, heavy snowfall, migratory songbirds, moose and pine martens are characteristic of: A) Polar biomes. B) Tundra. C) Taiga. D) Desert. Show Answer Correct Answer: C) Taiga. 57. Range of values that is needed for organism survival A) Tolerance range. B) Carrying Capacity. C) Optimum range. D) Limiting factor. Show Answer Correct Answer: A) Tolerance range. 58. It was hot all week last week. Is this a sign of climate change? A) No. B) Yes. Show Answer Correct Answer: A) No. 59. What are plants that convert energy from the sun called? A) Decoposer. B) Producer. C) Primary consumer. D) Secondary consumer. Show Answer Correct Answer: B) Producer. 60. Series of changes where an existing community is destroyed A) Commensalism. B) Secondary succession. C) Primary succession. D) Competition. Show Answer Correct Answer: B) Secondary succession. ← 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