This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Earth > Ecology – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 22 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Anything that restricts the number of individuals in a population; food, water, shelter. A) Biotic. B) Carrying capacity. C) Good luck. D) Limiting factors. Show Answer Correct Answer: D) Limiting factors. 2. Deer are herbivores. A) Habitat. B) Niche. Show Answer Correct Answer: B) Niche. 3. Remora are small fish with a sucker-like organ that allows them to attach themselves to larger animals like a shark. By doing this, the remora is able to gain protection from the presence of the shark while helping the shark stay clear from parasites. This relationship shows ..... ? A) Parasitism. B) Mutualism. C) Commensalism. D) Predation. Show Answer Correct Answer: B) Mutualism. 4. This large biome takes up about 70% of the Earth ..... A) Freshwater. B) Rainforest. C) Tundra. D) Ocean. Show Answer Correct Answer: D) Ocean. 5. What's COMMUNITY? A) The whole of living species in an area. B) Individual of the same species in an area. C) The adaptation of species. D) Living creatures+non living substances. Show Answer Correct Answer: A) The whole of living species in an area. 6. (Im)migration is ..... A) The migration process. B) The movement into an area. C) Exponential graph. D) The movement out of an area. Show Answer Correct Answer: B) The movement into an area. 7. Much of Canada is covered in pine spruce forests. The winter is cold and long. What is this biome? A) Tundra. B) Taiga or boreal forest. C) Deciduous forest. D) Grassland. Show Answer Correct Answer: B) Taiga or boreal forest. 8. What gas makes up 78% of Earth's atmosphere? A) Methane. B) Oxygen. C) Nitrogen. D) Carbon Dioxide. Show Answer Correct Answer: C) Nitrogen. 9. True or Falase:A natural disater is am example of a limiting factor A) False. B) True. Show Answer Correct Answer: B) True. 10. In an Ecosystem, matter flows: A) In a cycle. B) One way. Show Answer Correct Answer: A) In a cycle. 11. What is the movement of nutrients from storage source to exchange source? A) Stabilization. B) Cycle. C) Recycling. D) Wheels. Show Answer Correct Answer: B) Cycle. 12. The largest number of individuals that an area can support is called its ..... A) Carrying capacity. B) Limiting factor. C) Abiotic factor. D) Resource availability. Show Answer Correct Answer: A) Carrying capacity. 13. What does a limiting factor do? A) Provides geographical boundaries for migration. B) Stops a population from growing large. C) Helps organisms adapt to abiotic factors. D) Makes a population grow large. Show Answer Correct Answer: B) Stops a population from growing large. 14. A condition that occurs when two or more organisms compete for the same resources A) Parasitism. B) Competition. C) Mutualism. D) Predation. Show Answer Correct Answer: B) Competition. 15. What is the term for a group of different species in a given area? A) Community. B) Population. C) Ecosystem. D) Biome. Show Answer Correct Answer: A) Community. 16. What is the difference between a community and an ecosystem? A) They are not different at all. B) A community is how living things that have something in common work together and an ecosystem is living and nonliving things working together. C) Only an ecosystem works together. D) Only a community works together. Show Answer Correct Answer: B) A community is how living things that have something in common work together and an ecosystem is living and nonliving things working together. 17. Biomass and biofuels are A) Renewable. B) Nonrenewable. C) Product. D) None of above. Show Answer Correct Answer: A) Renewable. 18. What shows a series of events in which one organism eats another and gets energy? A) Energy pyramid. B) Food web. C) Food chain. D) Food map. Show Answer Correct Answer: C) Food chain. 19. The study of the interaction of living organisms with each other and with their environment is ..... A) Physics. B) Chemistry. C) Anatomy. D) Ecology. Show Answer Correct Answer: D) Ecology. 20. Which ecosystem structure is considered a "non-living environment" ? A) Organic and inorganic compounds. B) Physical environment such as temperature, water, humidity. C) Changes due to disturbances such as earthquakes, volcanic eruptions. D) All items combined. Show Answer Correct Answer: D) All items combined. 21. Examples of ..... are lions, polar bears, and hawks A) Carnivores. B) Consumers. Show Answer Correct Answer: A) Carnivores. 22. Epiphytes use larger trees as a surface to grow but don't help nor harm the larger tree. Which type of symbiosis is this? A) Communism. B) Condominium. C) Commensalism. D) Communion. E) Commercialism. Show Answer Correct Answer: C) Commensalism. 23. In any food web, the organisms that are responsible for converting raw energy into usable chemical energy are collectively called ..... while organisms that recycle the nutrients trapped in dead organisms are collectively called ..... A) Producers;consumers. B) Producers; decomposers. C) Consumers; decomposers. D) None of above. Show Answer Correct Answer: B) Producers; decomposers. 24. Are the largest biomes on Earth. They can be warm or cold. They are home to plants like seaweed and animals like fish, whales, turtles and sponges. A) Oceans. B) Ponds. C) Lakes. D) Ice islands. Show Answer Correct Answer: A) Oceans. 25. The collective mass of all living things in a particular area or at a specific trophic level of an ecosystem is known as ..... A) Population Size. B) Biomagnification. C) Biomass. D) Apex Trophism. Show Answer Correct Answer: C) Biomass. 26. An example of a behavioral adaptation is A) A polar bear's white fur used for camouflage. B) Penguins huddling together for warmth. C) A camel's hump used to store water. D) The long neck of a giraffe. Show Answer Correct Answer: B) Penguins huddling together for warmth. 27. Scientists have discovered a new species of fox that has larger than average ears and is nocturnal. In which biome would this new species of fox most likely be found? A) Tundra. B) Tropical rain forest. C) Deciduous forest. D) Desert. Show Answer Correct Answer: D) Desert. 28. Coyotes eat rabbits. Rabbits eat clover. What would most likely happen if the population of coyotes decreases? A) The rabbits and clover would decrease. B) The rabbits and clover would increase. C) The rabbits would increase, but the clover would decrease. D) The rabbits would decrease, but the clover would increase. Show Answer Correct Answer: C) The rabbits would increase, but the clover would decrease. 29. An animal that hunts for its food A) Decoposer. B) Predator. C) Producer. D) Prey. Show Answer Correct Answer: B) Predator. 30. What are 3 limiting factors? A) Food, space, and water. B) Food, space, and weather. C) Sun, moon, and earth. D) Sine, cosine, and tangent. Show Answer Correct Answer: B) Food, space, and weather. 31. An owl eats a field mouse. In this scenario, the owl is known as the ..... A) Parasite. B) Prey. C) Predator. D) Keystone Species. Show Answer Correct Answer: C) Predator. 32. Which is a non-living part of an ecosystem? A) Sunlight. B) Air. C) Water. D) All of these. Show Answer Correct Answer: D) All of these. 33. Which of the following is not an abiotic factor that can affect populations? A) Competition. B) Moisture levels. C) Light intensity. D) Temperature. Show Answer Correct Answer: A) Competition. 34. Which major biome is home to cacti, brittle bushes, small reptiles, and coyotes? A) Desert. B) Taiga. C) Tundra. D) Grassland. Show Answer Correct Answer: A) Desert. 35. What conservation technique was used to recovery the population of wolves in 1995? A) Reintroduction. B) Reincarnation. C) Captive Breeding. D) None of above. Show Answer Correct Answer: A) Reintroduction. 36. A model of the feeding relationships between many different consumers and producers in an ecosystem A) Food chain. B) Food web. C) Ecosystem. D) Energy pyramid. Show Answer Correct Answer: B) Food web. 37. True or false:No light penetrates to the bathypelagic, abyssopelagic and hadopelagic zones. A) True. B) False. Show Answer Correct Answer: A) True. 38. What gas does burning things release into the atmosphere? A) Oxygen. B) Nitrogen. C) Carbon dioxide. D) Diethylchlorofloromethane. Show Answer Correct Answer: C) Carbon dioxide. 39. Excessive use, of species that have economic value is a factor increasing the current rate of extinction. A) Habitat Loss. B) Destruction of Habitat. C) Pollution. D) Overexploitation. E) Disruption of Habitat. Show Answer Correct Answer: D) Overexploitation. 40. Organisms must have food because A) Food is a source of energy. B) Food supplies cells with oxygen. C) Organisms never make their own food. D) All of the above. Show Answer Correct Answer: A) Food is a source of energy. 41. A species that has an unusually large impact on its food web or ecosystem A) Capstone Species. B) Keystone Species. C) Producer. D) Predator Species. Show Answer Correct Answer: B) Keystone Species. 42. What type of relationship is described below? A lucky alligator spots a deer drinking water, attacks the deer, kills it, and eats it for food. What type of relationship do the alligator and deer have? A) Competition. B) Mutualism. C) Commensalism. D) Predation. Show Answer Correct Answer: D) Predation. 43. An organism that feeds on dead and decaying matter A) Scavenger. B) Decoposer. C) Heterotroph. D) Autotroph. Show Answer Correct Answer: A) Scavenger. 44. Which term means the number of different species that live in a particular area? A) Biodiversity. B) Ecosystem. C) Food Web. D) Invasive Species. Show Answer Correct Answer: A) Biodiversity. 45. A living thing that makes its own food is called a ..... A) Producer. B) Consumer. C) Carnivore. D) Herbivore. Show Answer Correct Answer: A) Producer. 46. What kind of factor:temperature? A) Density-independent. B) Density-dependent. Show Answer Correct Answer: A) Density-independent. 47. A giraffe has a long neck in order to better reach leaves to eat. This is an example of ..... A) Response. B) Stimulus. C) Environment. D) An adaptation. Show Answer Correct Answer: D) An adaptation. 48. Consumes the soft tissues of dead animals A) Omnivore. B) Scavenger. Show Answer Correct Answer: B) Scavenger. 49. Scientist use models to show relationships between organisms, an example of such a model would be a(n): A) Food web. B) Food chain. C) Energy pyramid. D) All of these. Show Answer Correct Answer: D) All of these. 50. Energy pyramid! What does it mean? A) An ecological pyramid is a graphical representation designed to show the biomass or bioproductivity at each trophic level in a given ecosystem. B) A pyramid in Egypt. C) A brick wall. D) Or an energy pyramid designed to show you the food chain starting off with energy. Show Answer Correct Answer: A) An ecological pyramid is a graphical representation designed to show the biomass or bioproductivity at each trophic level in a given ecosystem. 51. Which sequence correctly represents the action of nitrifying bacteria? A) Nitrogen $\rightarrow$ nitrate $\rightarrow$ nitrite. B) Nitrite $\rightarrow$ nitrate $\rightarrow$ ammonium. C) Ammonium $\rightarrow$ nitrite $\rightarrow$ nitrate. D) Nitrate $\rightarrow$ ammonium $\rightarrow$ nitrogen. Show Answer Correct Answer: C) Ammonium $\rightarrow$ nitrite $\rightarrow$ nitrate. 52. What type of relationship is described below? Mistletoe extracts water and nutrients from the oak tree, causing harm to the oak tree. What type of relationship do mistletoe and the oak tree have? A) Parasitism. B) Competition. C) Mutualism. D) Commensalism. Show Answer Correct Answer: A) Parasitism. 53. A group of populations A) Population. B) Organism. C) Community. D) Ecosystem. Show Answer Correct Answer: C) Community. 54. Which of these best explains why predators need plants, such as grass, in their ecosystem? A) Plants provide safety for predators. B) Plants provide food for their animals that the predators eat. C) Plants are a large part of their diets. D) Plants break down the organisms that the predators eat. Show Answer Correct Answer: B) Plants provide food for their animals that the predators eat. 55. The process where plants use sunlight, water, and carbon dioxide to produce sugar and release oxygen. A) Roots. B) Water Cycle. C) Photosynthesis. D) Respiration. Show Answer Correct Answer: C) Photosynthesis. 56. Ice melts, which puts out more CO2 in the atmosphere, further causing the temperature to rise and cause more ice to melt. This represents a A) Negative feedback loop. B) Positive feedback loop. Show Answer Correct Answer: B) Positive feedback loop. 57. Quantum mechanical model A) Quantum chemistry. B) Quantum mechanical model. C) Oxidation-reduction reaction. D) Laboratory glassware. Show Answer Correct Answer: B) Quantum mechanical model. 58. Panama is a country with a lot of biodiversity because of: A) Panama has a canal. B) Panama has a museum called Biomuseo. C) Panama rose up through volcanic activity. D) None of above. Show Answer Correct Answer: C) Panama rose up through volcanic activity. 59. A tiger is a(n) ....., an organism that gets food by eating other organisms A) Herbivore. B) Producer. C) Consumer. D) Plant. Show Answer Correct Answer: C) Consumer. 60. In addition to producers and consumers, healthy communities must have ....., bacteria and fungi which recycle detritus. A) Autothrops. B) Producer. C) Consumer. D) Decomposer. Show Answer Correct Answer: D) Decomposer. ← 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