This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Earth > Ecology – Quiz 73 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 73 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In an ecosystem, a biotic or abiotic resource that over time can keep organism populations "in check" is known as a ..... A) Niche. B) Carrying Capacity. C) Limiting Factor. D) Parasitism. Show Answer Correct Answer: C) Limiting Factor. 2. Carbon is stored in the atmosphere, in living organisms, and as ..... fuel deposits. A) Water vapor. B) Fossil. Show Answer Correct Answer: B) Fossil. 3. How does carbon get from plants to animals? A) Fedex. B) Through water. C) In the air. D) Through food. Show Answer Correct Answer: D) Through food. 4. An autotroph is another word for a ....., meaning it needs to ..... A) Producer, make its own food. B) Consumer, eat other plants. C) Consumer, eat other animals. D) Producer, survive without water. Show Answer Correct Answer: A) Producer, make its own food. 5. Who introduced the term lithosphere? A) Walker. B) Joseph Barrell. C) Joseph. D) Thomson. Show Answer Correct Answer: B) Joseph Barrell. 6. This biome has very short, warm summers and very cold winters. In spring, parts of forest become swamp, known as "swam forest" or "Taiga" in Russian. Best known for trees with needles. A) Coniferous Forest. B) Tundra. C) Rainforest. D) Deciduous Forest. Show Answer Correct Answer: A) Coniferous Forest. 7. Which of these describes the rainforest? A) Populated by squirrels, bears and pine trees. B) Relatively few trees. C) Generally close to the equator. D) Short, mild, dry summers. Show Answer Correct Answer: C) Generally close to the equator. 8. Which of the following describes the role of nitrogen-fixing bacteria in the nitrogen cycle? Nitrogen-fixing bacteria convert A) Nitrogen gas into ammonia. B) Nitrates intro nitrogen gas. C) Ammonia into proteins. D) Proteins into nitrates. Show Answer Correct Answer: A) Nitrogen gas into ammonia. 9. Dropping leaves in the fall is a characteristic of what type of tree? A) Bonsai. B) Deciduous. C) Evergreen. D) Conifer. Show Answer Correct Answer: B) Deciduous. 10. Where are hurricanes most likely to do the most damage? A) In a desert. B) Near the coast. C) In the forest. D) On the North Pole. Show Answer Correct Answer: B) Near the coast. 11. Density-dependent is..... A) Factors that occur regardless of how dense (crowded) the population may be. B) Any force that affects the size of a population of living things in response to density of the population. Show Answer Correct Answer: B) Any force that affects the size of a population of living things in response to density of the population. 12. Some deep-sea bacteria live near submerged volcanoes and make their own food using energy derived from minerals coming from the volcanoes. These bacteria would be classified as A) Photosynthetic. B) Heterotrophic. C) Abiotic. D) Autotrophic. Show Answer Correct Answer: D) Autotrophic. 13. At each trophic level ..... % of energy is lost and ..... % of energy is transferred. A) 1, 9. B) 9, 1. C) 10, 90. D) 90, 10. Show Answer Correct Answer: D) 90, 10. 14. Sublimation occurs when ice and snow change directly to ..... A) Water vapor. B) Recycling. Show Answer Correct Answer: A) Water vapor. 15. The series of changes an environment will take to restore itself after a disturbance is called A) Succession. B) Climax community. C) Population growth. D) Climax change. Show Answer Correct Answer: A) Succession. 16. Adaptation that allows an organism to blend into its environment A) Camouflage. B) Mimicry. Show Answer Correct Answer: A) Camouflage. 17. A deer population has significantly increased, the best hypothesis is A) Decreased water levels of local ponds. B) Competition increased. C) The deer's main predator has been eliminated. D) Organisms that rely on similar food sources migrated to the area. Show Answer Correct Answer: C) The deer's main predator has been eliminated. 18. Individual plants or animals in a population with certain desired traits are chosen by breeders, farmers, or ranchers to mate. The people hope to get the desired traits in the offspring. A) Natural selection. B) Gene flow. C) Selective breeding. D) Mutations. Show Answer Correct Answer: C) Selective breeding. 19. All the alligators in a swamp are an example of a(n) ..... A) Population. B) Group. C) Organism. D) Community. Show Answer Correct Answer: A) Population. 20. ..... occurs when plants release water vapor through stomata. A) Evaporation. B) Transpiration. Show Answer Correct Answer: B) Transpiration. 21. Recycling centers- A) Recycling. B) Ejection. C) Destruction. D) Recycling centers. Show Answer Correct Answer: D) Recycling centers. 22. Process by which a cell captures the energy in sunlight and uses it to make food. A) Chloroplast. B) Photosynthesis. C) Mitochondria. D) Respiration. Show Answer Correct Answer: B) Photosynthesis. 23. Abiotic factors are ..... A) Not important parts of ecosystems. B) Living parts of an ecosystem. C) Things that once were alive, but now are dead. D) Non-living parts of an ecosystem. Show Answer Correct Answer: D) Non-living parts of an ecosystem. 24. Herbivores are considered to be A) Autotrophs. B) Carnivores. C) Omnivores. D) Heterotrophs. Show Answer Correct Answer: D) Heterotrophs. 25. A large tract of land is purchased by a commercial agricultural company. The land is cleared of its native flora (plants), and a single crop is planted instead. What is the effect of this action? A) There is an increase in the variety of foods. B) The biodiversity of the area is reduced. C) Thereis a reduction in the size of the land. D) Thecost of the planted crop increases. Show Answer Correct Answer: B) The biodiversity of the area is reduced. 26. Which element do all living things have in common? A) Needing to breathe. B) Needing to eat. C) Carbon. D) None of above. Show Answer Correct Answer: C) Carbon. 27. Which level of consumer usually eats the first level consumers and the second level consumers? A) Primary consumer. B) Secondary consumer. C) Tertiary consumer. D) None of above. Show Answer Correct Answer: C) Tertiary consumer. 28. Poikilotherm animals A) Animal world. B) Insects. C) Warm-blooded animals. D) Cold-blooded animals. Show Answer Correct Answer: D) Cold-blooded animals. 29. Layer of soil that is nutrient rich, containing a mixture of humus, clay, and minerals, is most suitable for plant growth. A) Bedrock. B) Parent material. C) Top soil. D) None of above. Show Answer Correct Answer: C) Top soil. 30. All nonliving things in an ecosystem, including water, rocks, sunlight, weather, natural disasters, oxygen, space, hunting, and shelter A) Biotic factor. B) Abiotic factor. C) Limiting factor. D) Ecology. Show Answer Correct Answer: B) Abiotic factor. 31. Which is a result of human activities? A) Acid rain kills fish in a lake. B) Decay of leaves in a forest. C) Bad weather. D) Volcanic eruptions. Show Answer Correct Answer: A) Acid rain kills fish in a lake. 32. Two researchers studied the effect of light pollution on bird migration. Their results were supported by many other similar studies and was logical based on scientific understanding of migration behavior and their careful study design. Their study results could be described as: A) Showing bias. B) Having validity. C) Being a hypothesis. D) Showing a carrying capacity. Show Answer Correct Answer: B) Having validity. 33. The first person to develop a classification system was? A) Lamark. B) Linnaeus. C) Aristotle. D) Gregor Mendel. Show Answer Correct Answer: B) Linnaeus. 34. The non-living parts of an organism's environment are called ..... A) Biotic factors. B) Abiotic factors. C) Habitat. D) Community. Show Answer Correct Answer: B) Abiotic factors. 35. Rain, snow, sleet, hail, or freezing rain A) Precipitation. B) Roff. Show Answer Correct Answer: A) Precipitation. 36. What do you call an animal that is hunted by another animal? A) Prey. B) Producer. C) Herbivore. D) Predator. Show Answer Correct Answer: A) Prey. 37. This climatograph represents which biome? A) Tropical rainforest. B) Desert. C) Tundra. D) Taiga. Show Answer Correct Answer: A) Tropical rainforest. 38. What is the lowest level of a food chain? A) Tertiary consumer. B) Primary consumer. C) Secondary consumer. D) Producer. Show Answer Correct Answer: D) Producer. 39. Consumer that eats animals or meat A) Carnivore. B) Omnivore. C) Producer. D) Consumer. Show Answer Correct Answer: A) Carnivore. 40. Ecology is a science therefore, it is based on the A) The geographic inquiry process. B) Deductive methood. C) The scientific method. D) Inductive method. Show Answer Correct Answer: C) The scientific method. 41. Consumes BOTH meat AND vegetation A) Omnivore. B) Scavenger. C) Decoposer. D) Producer. Show Answer Correct Answer: A) Omnivore. 42. Non-point source pollution means..... A) We know exactly where the pollution came from. B) We do not know exactly where the pollution came from. C) Means the pollution has no point and cannot break through layers of rock. D) There is no pollution. Show Answer Correct Answer: B) We do not know exactly where the pollution came from. 43. Which fossil fuel may run out in your lifetime? A) Coal. B) Petroleum. C) Natural gas. D) None of above. Show Answer Correct Answer: B) Petroleum. 44. Plants and animals are an example of a(n) ..... species A) Biotic. B) Abiotic. Show Answer Correct Answer: A) Biotic. 45. To endanger / to be endangered- A) Poison (fertilizes-fertilizers). B) Endanger / be in danger. C) To be thrown out in large quantities/to be thrown away. D) End. Show Answer Correct Answer: B) Endanger / be in danger. 46. What do you call the organisms eat dead plants and dead animals? A) Producer. B) Consumer. C) Decoposer. D) Food chain. Show Answer Correct Answer: C) Decoposer. 47. An organism that kills and eats another for food A) Predator. B) Plant. C) Prey. D) Parasite. Show Answer Correct Answer: A) Predator. 48. This cycle deals with evaporation and condensation A) Phosphorus. B) Nitrogen. C) Water. D) Carbon. Show Answer Correct Answer: C) Water. 49. The place in which people live and work, including the land, water, air, plants, animals and all physical conditions that affect them A) Ecology. B) Environment. C) Poison. D) None of above. Show Answer Correct Answer: B) Environment. 50. What can decomposers do that other organisms cannot? A) Make energy by using photosynthsis. B) Return living things back to life. C) Return material from living things back to the soil. D) Return material from living things back to the sky. Show Answer Correct Answer: C) Return material from living things back to the soil. 51. Consumers that eat producers and other consumers are known as ..... A) Carnivores. B) Scavengers. C) Herbivores. D) Omnivores. Show Answer Correct Answer: D) Omnivores. 52. The study of ecology is the study of ..... in ecosystems A) Relationships. B) Biotic and abiotic factors. C) Communities. D) Pollution. Show Answer Correct Answer: A) Relationships. 53. An organism's way of life within an ecosystem is called its ..... A) Niche. B) Habitat. C) Biosphere. D) Community. Show Answer Correct Answer: A) Niche. 54. This biome is characterized by grasses, few trees, is usually cold, and includes animals like bison, prairie dogs, and antelope ..... A) Praire temperate gassland. B) Taiga. C) Desert. D) None of above. Show Answer Correct Answer: A) Praire temperate gassland. 55. The water cycle takes place on, above, and below Earth's surface. A) True. B) False. Show Answer Correct Answer: A) True. 56. What vocabulary term refers to all of the nonliving things in an ecosystem? A) Biotic factors. B) Abiotic factors. Show Answer Correct Answer: B) Abiotic factors. 57. Two or more members of the same organism living and interacting in the same area A) Organisms. B) Population. C) Community. D) Biosphere. Show Answer Correct Answer: B) Population. 58. Close relationship between organisms in which at least one benefits A) Competition. B) Predation. C) Symbiosis. D) None of above. Show Answer Correct Answer: C) Symbiosis. 59. Greatest/largest possible measure of longitude A) 180 degrees east or west. B) 100 degrees east or west. C) 90 degrees east or west. D) 50 degrees east or west. Show Answer Correct Answer: A) 180 degrees east or west. 60. (Em)migration is ..... A) The movement into an area. B) The migration process. C) Exponential graph. D) The movement out of an area. Show Answer Correct Answer: D) The movement out of an area. ← 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