This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Earth > Ecology – Quiz 67 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 67 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A type of symbiosis in which one species benefits and the other is not affected is ..... A) Mutualism. B) Commensalism. C) Parasitism. D) None of above. Show Answer Correct Answer: B) Commensalism. 2. What kind of diets do detritivores have? (Detri-=dead) A) They consume only plants. B) They consume only dead or dying things. C) They consume only meat. D) They consume both plants and meat. Show Answer Correct Answer: B) They consume only dead or dying things. 3. Communities include A) All of the biotic factors in an area. B) All of the abiotic and biotic factors in an area. C) All of the nonliving things in an area. D) All of the organisms of the same species in an area. Show Answer Correct Answer: A) All of the biotic factors in an area. 4. An organism that cannot make its own food A) Leaf. B) Consumer. C) Tree. D) Producer. Show Answer Correct Answer: B) Consumer. 5. An organism that gets its energy by eating or consuming other organisms A) Decoposer. B) Consumer. C) Producer. D) Scavenger. Show Answer Correct Answer: B) Consumer. 6. Angel was trying to explain carrying capacity to her mother. Which of the following descriptions is accurate? Carrying capacity is: A) The number of predators that an area can sustain over the long term. B) The maximum number of individuals that an ecosystem can sustain. C) The ability of an environment to accommodate a growing population. D) The maximum number of species that can co-exist in an area. Show Answer Correct Answer: B) The maximum number of individuals that an ecosystem can sustain. 7. What term do ecologists use to describe where an animal lives (an animal's home)? A) Ecosystem. B) Population. C) Habitat. D) Ecologist. Show Answer Correct Answer: C) Habitat. 8. Which of the following is not a threat to biodiversity? A) Deforestation. B) Introduction of invasive species. C) Farming and agriculture. D) Protecting natural resources. Show Answer Correct Answer: D) Protecting natural resources. 9. Alloy-structurestructure-alloy A) Wrong. B) Right. Show Answer Correct Answer: A) Wrong. 10. Indicates the organism's position in a sequence of energy transfers A) Trophic level. B) Limiting factors. C) Carrying capacity. D) None of above. Show Answer Correct Answer: A) Trophic level. 11. Which of the following is a characteristic of deserts? A) Little precipitation. B) Tall trees. C) Broad leaved plants. D) Hot days and nights. Show Answer Correct Answer: A) Little precipitation. 12. A nonliving element in an ecosystem is an A) Animal. B) Abiotic factor. C) Organism. D) Biotic factor. Show Answer Correct Answer: B) Abiotic factor. 13. A frog eats a fly. The frog and fly are demonstrating ..... A) Competition. B) Predator/prey. C) Parasitism. D) Mutualism. Show Answer Correct Answer: B) Predator/prey. 14. These eat only autotrophs A) Herbivore. B) Omnivore. C) Carnivore. D) None of above. Show Answer Correct Answer: A) Herbivore. 15. Which is the percentage of energy lost in each trophic level as heat? A) 10 %. B) 20%. C) 100 %. D) 0, 1 %. Show Answer Correct Answer: A) 10 %. 16. What restricts the length of a food chain? A) Energy losses between the trophic levels. B) A greater biomass at the higher trophic levels. C) The consumption of waste by detritivores. D) The number of species in the food web. Show Answer Correct Answer: A) Energy losses between the trophic levels. 17. A squirrel hides his acorns from the chipmunks for the winter. A) Parasitism. B) Competition. C) Mutualism. D) Commensalism. Show Answer Correct Answer: B) Competition. 18. Which of the following is an example of an interaction between a living and nonliving organism? A) A snake using a mouse for food. B) A worm using the soil as shelter. C) A bird using an insect for food. D) None of above. Show Answer Correct Answer: B) A worm using the soil as shelter. 19. In going from one trophic level to the next higher level, A) Diversity of organisms increases. B) The number of organisms increases. C) The amount of usable energy increases. D) The amount of usable energy decreases. Show Answer Correct Answer: D) The amount of usable energy decreases. 20. A compound consists of two or more elements bound together. A) True. B) False. Show Answer Correct Answer: A) True. 21. Which nutrient cannot be found within the atmosphere? A) Nitrogen. B) Water. C) Carbon. D) Oxygen. E) Phosphorus. Show Answer Correct Answer: E) Phosphorus. 22. A herbivore eats A) Only plants. B) Only animals. C) Plants and animals. D) Sunlight. Show Answer Correct Answer: A) Only plants. 23. Which behavior is genetically based and NOT linked to past experiences? A) Habituation. B) Operant conditioning. C) Innate behavior. D) Classical conditioning. Show Answer Correct Answer: C) Innate behavior. 24. The role of ..... is to recycle wastes and dead material. A) 3rd level consumers. B) Consumers. C) Herbivores. D) Decomposers. Show Answer Correct Answer: D) Decomposers. 25. What is the process called that changes atmospheric nitrogen into compounds that are usable by living things? A) Photosynthesis. B) Nitrogen fixation. C) Nitrogen breaking. D) Respiration. Show Answer Correct Answer: B) Nitrogen fixation. 26. Which of the following is an example of an organism with a generalized niche? A) Coral-eating butterfly fish. B) Dugongs. C) Tuna. D) Greenland shark parasitic copepods. Show Answer Correct Answer: C) Tuna. 27. What are the traits that make an organism better to survive in its environment called? A) Niche. B) Evolution. C) Population. D) Adaptations. Show Answer Correct Answer: D) Adaptations. 28. A new volcanic island is produced off the coast. What will most likely be the first species to grow there? A) Lichens. B) Weeds. C) Pioneer trees. D) Grasses. Show Answer Correct Answer: A) Lichens. 29. Which of the following describes a group of individuals of the same species? A) Biome. B) Community. C) Ecosystem. D) Population. Show Answer Correct Answer: D) Population. 30. Coyotes and Foxes both live in Maryland and both eat rabbits and mice A) Mutualism. B) Parasitism. C) Commensalism. D) Competition. Show Answer Correct Answer: D) Competition. 31. Species of animals that obtain food by consuming only autotrophic organisms are usually classified as A) Scavengers. B) Herbivores. C) Omnivores. D) Decomposers. Show Answer Correct Answer: B) Herbivores. 32. Which biome is located in Canada with lots of pine trees? A) Temperate Grassland. B) Temperate Forest. C) Taiga. D) Savanna. Show Answer Correct Answer: C) Taiga. 33. Which of the following is an example of an abiotic factor? A) Wind. B) Plants. C) Animals. D) Decomposers. Show Answer Correct Answer: A) Wind. 34. Having a variety of organisms in an ecosystem would be A) Biological diversity. B) Ecosystem. C) Endangered. D) Abiotic. Show Answer Correct Answer: A) Biological diversity. 35. Which of the following is considered a hot-spot of biodiversity in India? A) Aravalli hills. B) Western ghats. C) Indo-gangetic plain. D) Eastern ghats. Show Answer Correct Answer: B) Western ghats. 36. Which of the following gases, released by animals as a waste product of digestion, can add to global warming? A) Methane. B) Nitrogen. C) Chlorofluorocarbon. D) Carbon Dioxide. Show Answer Correct Answer: A) Methane. 37. The study of the interactions among organisms and their environment A) Ecology. B) Ecosystem. C) Commensalism. D) Biotic Factors. Show Answer Correct Answer: A) Ecology. 38. A squirrel makes its habitat in a forest. A company purchases the land and cuts down the trees. What would happen? A) The squirrel population would decrease. B) The squirrel would adapt to living there. C) The squirrel population would continue to increase. D) The tree population would increase. Show Answer Correct Answer: A) The squirrel population would decrease. 39. The only continent grasslands aren't found on. A) Dormant. B) Graze. C) Latitude. D) Antarctica. Show Answer Correct Answer: D) Antarctica. 40. Which of the following is a social benefit of the development of homes, businesses, etc.? A) Loss of habitat. B) Increase in tax revenue for cities. C) Conflict between groups that are for and against development. D) Create spaces where people can interact and work. Show Answer Correct Answer: D) Create spaces where people can interact and work. 41. In which area would secondary succession NOT occur? A) A glacier melts and exposes new rocks. B) A forest is destroyed by fire. C) A flood kills all the grass and plants in a meadow. D) A field that was cleared for farming is abandoned. Show Answer Correct Answer: A) A glacier melts and exposes new rocks. 42. Diseases may spread more rapidly when an area is crowded, so disease is considered to be a A) Population crasher. B) Population enhancer. C) Density-dependent limiting factor. D) Type I survivorship curve. Show Answer Correct Answer: C) Density-dependent limiting factor. 43. Four basic needs of life A) Electricity, food, shelter, space. B) Shelter, food, space, friends. C) Space, food, shelter, animals. D) Food, water, shelter, space. Show Answer Correct Answer: D) Food, water, shelter, space. 44. Dogs pant in the summer, even while they are taking a nap. Why? A) To get on your nerves. B) To scare off predators. C) To help keep them cool since they don't sweat. D) To help them relax. Show Answer Correct Answer: C) To help keep them cool since they don't sweat. 45. Which biome is characterized by very low temperatures, high winds, and permafrost? A) Desert. B) Tropical dry forest. C) Tundra. D) Wetland. Show Answer Correct Answer: C) Tundra. 46. Of all amphibians are threatened with extinction A) False. B) True. Show Answer Correct Answer: A) False. 47. A system comprising all the biotic and abiotic factors in an area and all the interacts among them A) Community. B) Population. C) Species. D) Ecosystem. Show Answer Correct Answer: D) Ecosystem. 48. How is carbon dioxide removed from the atmosphere? A) Through factory emissions. B) Through transpiration. C) Sunlight. D) Through photosynthesis. Show Answer Correct Answer: D) Through photosynthesis. 49. Which of the following contains all organisms living in an area? A) Organism. B) Ecosystem. C) Community. D) Population. Show Answer Correct Answer: C) Community. 50. What is the term for a group of organisms of the same species living in a particular area? A) Biosphere. B) Population. C) Commuity. D) Ecosystem. Show Answer Correct Answer: B) Population. 51. The spacing of organisms relative to one another A) Size. B) Density. C) Dispersion. D) None of above. Show Answer Correct Answer: C) Dispersion. 52. The biggest cause of extinction today is A) Climate change. B) Habitat loss. C) Pollution. D) Over-harvesting. Show Answer Correct Answer: B) Habitat loss. 53. Trees, grass, squirrels, bacteria are: A) Biotic, living. B) Abiotic, living. C) Abiotic, non-living. D) Biotic, non-living. Show Answer Correct Answer: A) Biotic, living. 54. High biodiversity is a sign of a healthy ecosystem. A) True. B) False. Show Answer Correct Answer: A) True. 55. Nitrogen fixation processes nitrogen from which of the following sources? A) Atmosphere. B) Fertilizers. C) Lightning. D) Dead plants. Show Answer Correct Answer: A) Atmosphere. 56. What role do decomposers play in the phosphorous cycle? A) Return phosphorous into the soil. B) Release phosphorous into atmosphere. C) Absorb phosphorous. D) Combustion. Show Answer Correct Answer: A) Return phosphorous into the soil. 57. What is it called when several organisms need to use the same resource at the same time? A) Predation. B) Symbiosis. C) Competition. D) Niche. Show Answer Correct Answer: C) Competition. 58. Living organism and products of organisms A) Abiotic. B) Biotic. C) Community. D) Species. Show Answer Correct Answer: B) Biotic. 59. Which level is found at the top? A) Secondary Consumers. B) Primary Consumers. C) Tertiary Consumers. D) Producers. Show Answer Correct Answer: C) Tertiary Consumers. 60. Cacti, Lichens, Locusts, Uromastix, and Quails are member of ..... Ecosystem. A) Marine. B) Grassland. C) Aquatic. D) Desert. Show Answer Correct Answer: D) Desert. ← 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