This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Earth > Ecology – Quiz 51 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 51 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following organisms are typical decomposers? A) Grasses and ferns. B) Bacteria and mushrooms. C) Mice and deer. D) Lions and snakes. Show Answer Correct Answer: B) Bacteria and mushrooms. 2. The scientist who introduced the term "Ecology" first: A) E. Suess. B) V.N.Vernadsky. C) Fredericks. D) K. Radkevich. E) E. Haeckel. Show Answer Correct Answer: E) E. Haeckel. 3. Consumes wastes and dead organisms A) Decomposers. B) Prey. C) Predator. D) Consumers. Show Answer Correct Answer: A) Decomposers. 4. Deforestation does not cause animals to lose their habitats. A) True. B) False. Show Answer Correct Answer: B) False. 5. Silverfish live and hunt with army ants. They share the prey. They neither help nor harm the ants. A) Mutualism. B) Parasitism. C) Commensalism. D) None of above. Show Answer Correct Answer: C) Commensalism. 6. Limiting factors which impact the size of a population no matter how large that population is. A) Exponential Growth. B) Density Dependent Limiting Factors. C) Density Independent Limiting Factors. D) Carrying Capacity. Show Answer Correct Answer: C) Density Independent Limiting Factors. 7. Which of the following are all biotic? A) Dogs, Meat, Cats, Catnip. B) Temperature, Light, Rain, Gravity, Heat. C) Water, Fish, Insects, Lily Plants. D) Lion, Pride Rock, Warthog, Meerkat. Show Answer Correct Answer: A) Dogs, Meat, Cats, Catnip. 8. All ecosystems begin with the ..... A) Renewable resource. B) Sun. C) Animals. D) Plants. Show Answer Correct Answer: B) Sun. 9. Population Density:definition A) Calculated by dividing the number of different populations by the unit area. B) Calculated by dividing the number of individuals in a community by the unit area. C) Calculated by dividing the number of individuals in a population by the unit area. D) Calculated by dividing the number of individuals in an ecosystem by the unit area. Show Answer Correct Answer: C) Calculated by dividing the number of individuals in a population by the unit area. 10. The following are part of the carbon cycle EXCEPT ..... A) Precipitation. B) Respiration. C) Decomposition. D) Photosynthesis. Show Answer Correct Answer: A) Precipitation. 11. Incomplete combustion is combustion A) (CO) does not produce carbon monoxide. B) In conditions where there is a lack of oxygen. C) .It was turned off in the middle of the process. D) In conditions where there is an excess of oxygen. Show Answer Correct Answer: B) In conditions where there is a lack of oxygen. 12. How many species are found in a population? A) Five. B) No Limit. C) Ten. D) One. Show Answer Correct Answer: D) One. 13. What percentage of energy is passed on to each tropic level? A) 50%. B) 100%. C) 10%. D) 90%. Show Answer Correct Answer: C) 10%. 14. Feed on both producers and consumers A) Omnivore. B) Carnivore. C) Scavenger. D) Herbivore. Show Answer Correct Answer: A) Omnivore. 15. The first trophic level of an ecosystem consists of: A) Plants. B) Herbivores. C) Carnivores. D) None of above. Show Answer Correct Answer: A) Plants. 16. A community is concerned about the water quality of a nearby lake. Increased sedimentation in the lake is endangering the native habitat. The increased sedimentation is most likely caused by which of the following? A) Trees planted along the shore of the lake. B) Construction of homes along the lake. C) The amount of sunlight on the lake. D) The amount of fish in the lake. Show Answer Correct Answer: B) Construction of homes along the lake. 17. If you visited a forest in 2015 and there was only small plants there when revisited in 2019, what likely happened? A) Preservation of a habitat. B) Occurrence of a forest fire. C) Passing of a glacier. D) Development of a parking lot. Show Answer Correct Answer: B) Occurrence of a forest fire. 18. He was the first person who studied the interactions between living things and their environment. A) Alexandre von Humboldt. B) Charles Darwin. C) Charles Linneo. D) Theophrastus. Show Answer Correct Answer: D) Theophrastus. 19. A ..... eats mainly other animals. A) Omnivore. B) Carnivore. C) Herbivore. D) Decoposer. Show Answer Correct Answer: B) Carnivore. 20. An organisms habitat provides A) Carrying capacity. B) Space. C) Food, water and shelter. D) Abiotic factors. Show Answer Correct Answer: C) Food, water and shelter. 21. Which two factors can affect the rate in which photosynthesis occurs? A) PH and soil color. B) Temperature and phosphorus. C) PH and temperature. D) Temperature and light intensity. Show Answer Correct Answer: D) Temperature and light intensity. 22. Precipitation that falls on land and soaks into the ground A) Runoff. B) Groundwater. Show Answer Correct Answer: B) Groundwater. 23. I rely on eating other organisms for the energy I need to function since I can not make my own food. A) Consumer. B) Producer. C) Decoposer. D) None of above. Show Answer Correct Answer: A) Consumer. 24. In all food webs, ..... play the role of producers. A) Small animals. B) Predators. C) Microscopic organisms. D) Plants. Show Answer Correct Answer: D) Plants. 25. These are the materials that can be used for Brown Mix. Fall leaves, chipped tree branches, straw, sawdust, corn stalks, cardboard, dryer lint and used paper. There is one materials missing. What is it? A) Plastic bottles. B) Glass. C) Seaweed. D) Cotton fabric. Show Answer Correct Answer: D) Cotton fabric. 26. It is a biogeochemical cycle A) Color wheel. B) Refraction of light. C) Food chain. D) Water wheel. Show Answer Correct Answer: D) Water wheel. 27. Which of the following refers to all the organisms in a particular area? A) Population. B) Community. C) Ecosystem. D) Organelles. Show Answer Correct Answer: B) Community. 28. An animal eaten by the predator. A) Prey. B) Predator. Show Answer Correct Answer: A) Prey. 29. If a frog is the prey, what could be the predator? A) Insect. B) Grass. C) Snake. D) Snail. Show Answer Correct Answer: C) Snake. 30. What is the study of how living things interact with each other and with their environment? A) Ecology. B) Biology. C) Geography. D) None of above. Show Answer Correct Answer: A) Ecology. 31. This is the type of biome in water A) Terrestrial. B) Aquatic. Show Answer Correct Answer: B) Aquatic. 32. The BEST way to distinguish Primary Succession from Secondary Succession is ..... A) The time it takes to reach Climax (Primary takes longer, Secondary takes less). B) The presence of Lichens in the first stage. C) The absence of Fire as a cause of Succession. D) The absence of soil in the first stage. Show Answer Correct Answer: D) The absence of soil in the first stage. 33. What might occur when a carnivore is removed from the food web? A) Nothing. Organisms cannot impact things below them on the energy pyramid. B) Primary consumers will overpopulate. C) Plants will be over browsed by herbivores. D) Both B and C might occur. Show Answer Correct Answer: D) Both B and C might occur. 34. Estuaries are areas where freshwater and saltwater will mix. Organisms found here would need to be adapted to deal with: A) Extreme depth. B) Low nutrient levels. C) Changing salinity. D) High amounts of pressure. Show Answer Correct Answer: C) Changing salinity. 35. Carbon dioxide is added to the atmosphere by A) Burning fossil fuels. B) Cellular respiration. C) Decomposing organic matter. D) All answers are correct. Show Answer Correct Answer: D) All answers are correct. 36. A lion and a hyena compete for the same food source, a gazelle. What is the relationship between the hyena and gazelle? A) Predator-Prey. B) Competition. C) Mutualism. D) Commensalism. Show Answer Correct Answer: A) Predator-Prey. 37. All the living things and nonliving things in a certain area. A) Food chain. B) Food web. C) Ecosystem. D) None of above. Show Answer Correct Answer: C) Ecosystem. 38. Which of the following are basic needs for animals? A) Shelter, water, food, and protection. B) Water, oxygen, space, shelter, and relaxation. C) Food, water, oxygen, space, and shelter. D) Food, water sunlight, space, and shelter. Show Answer Correct Answer: C) Food, water, oxygen, space, and shelter. 39. A relationship in which one organism benefits while the other is neither helped nor harmed A) Parasitism. B) Commensalism. C) Competition. D) Mutualism. Show Answer Correct Answer: A) Parasitism. 40. Drones have stinger? A) Yes. B) Yes and no. C) No. D) Maybe. Show Answer Correct Answer: C) No. 41. Which of the following lists biotic factors? A) Grass, squirrel, mushroom, oxygen. B) Grass, squirrel, mushroom, bacteria. C) Grass, squirrel, mushroom, soil. D) Grass, squirrel, mushroom, sunlight. Show Answer Correct Answer: B) Grass, squirrel, mushroom, bacteria. 42. Factors in the environment that have an increasing effect as the population size increases (examples:disease, competition, parasites) A) Density-dependent. B) Density-independent. Show Answer Correct Answer: A) Density-dependent. 43. Arctic foxes are white in the winter to blend in with the snow. What adaptation is this? A) Migration. B) Camouflage. C) Behavioral adaptation. D) Hibernation. Show Answer Correct Answer: B) Camouflage. 44. T/F:Abiotic factors are an unimportant part of ecosystems. A) False. B) True. Show Answer Correct Answer: A) False. 45. A forest recovering from the ashes after a fire is an example of? A) Secondary Succession. B) Selective Succession. C) Primary Succession. D) Natural Selection. Show Answer Correct Answer: A) Secondary Succession. 46. Classification of biotic factors: A) Anthropogenic, orographic, edaphogenic, chemical. B) Chemical, edaphogenic, anthropogenic, zoogenic. C) Climatic, edaphogenic, orographic, chemical. D) Edaphogenic, zoogenic, phytogenic, microbiogenic. E) Phytogenic, zoogenic, microbiogenic. Show Answer Correct Answer: E) Phytogenic, zoogenic, microbiogenic. 47. A wolf cub came too close to a skunk, and was sprayed by its foul smelling chemical spray. Now, the wolf cub stays away from skunks. What type of behavior is this? A) Learned behavior. B) Imprinting. C) Migration. D) Innate behavior. Show Answer Correct Answer: A) Learned behavior. 48. An organism that makes its own food by using sunlight or chemicals (also known as an producer) is called a A) Consumer. B) Autotroph. C) Detrivorous. D) Predator. Show Answer Correct Answer: B) Autotroph. 49. Ecology is the study of the ..... of organisms with the environment. A) Number. B) Types. C) Relationships. D) Journey. Show Answer Correct Answer: C) Relationships. 50. What type of symbiosis is this? *Hermit crabs find shells left by snails that have died and move in. * Snails die and leave behind their shells. A) Mutualism. B) Parasitism. C) Commensalism. D) Predation. Show Answer Correct Answer: C) Commensalism. 51. Plants such as the Venus Flytrap respond to stimuli such as touch. Which term refers to a plant's response to touch? A) Hydrotropism. B) Thigmotropism. C) Gravitropism. D) Phototropism. Show Answer Correct Answer: B) Thigmotropism. 52. Another name for water is ..... A) Aquatic. B) Latitude. C) Terrestrial. D) Alpine. Show Answer Correct Answer: A) Aquatic. 53. All plants can use nitrogen in the atmophere A) True. B) Talk. Show Answer Correct Answer: B) Talk. 54. In the relationship between two species, each has a negative effect on the other, a type of ecological relationship. A) Commensalism. B) Mutulism. C) Competition. D) Amensalism. Show Answer Correct Answer: C) Competition. 55. A large, relatively distinct region with a similar climate, soil, plants, and animals A) Biotopes. B) Biomes. C) Ecozones. D) Biodomes. Show Answer Correct Answer: B) Biomes. 56. Reasoning is ..... A) A statement of conclusion that answers the original question/problem. B) Scientific data that supports the claim. C) An explanation that connects the evidence to the claim. D) None of above. Show Answer Correct Answer: C) An explanation that connects the evidence to the claim. 57. Aquatic biomes in the ocean are called marine biomes. A) True. B) False. Show Answer Correct Answer: A) True. 58. A Viceroy butterfly looking like a bright colored poisonous Monarch butterfly is an example of ..... A) Warning coloration. B) Camouflage. C) Protective resemblance. D) Mimicry. Show Answer Correct Answer: D) Mimicry. 59. If several species of carnivores are removed from an ecosystem, the most likely effect on the ecosystem will be: A) A decrease in stability among populations. B) A decrease in the number of abiotic factors. C) An increase in the kinds of autotrophs. D) An increase in the rate of succession. Show Answer Correct Answer: A) A decrease in stability among populations. 60. Are rivers, lakes, streams and ponds. They are home to animals like fish, frogs and birds. Many plants grow in or near A) Freshwater biome. B) Saltwater biome. C) Brackish biome. D) Brine bioms. Show Answer Correct Answer: A) Freshwater biome. ← 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