This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Earth > Ecology โ Quiz 77 ๐ Homepage ๐ Download PDF Books ๐ Premium PDF Books Ecology Quiz 77 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What are "trophic levels" ? A) Levels in a food web/food chain. B) Levels of land in a mountain. C) Animal diets. D) None of above. Show Answer Correct Answer: A) Levels in a food web/food chain. 2. Ecosystems in water A) A blending of ecosystems. B) Terrestrial ecosystems. C) Aquatic ecosystems. D) An animal's body uses 's to survive an environment. Show Answer Correct Answer: C) Aquatic ecosystems. 3. Which of the following correctly lists the levels of organization in increasing order? A) Ecosystem, community, population, organism. B) Organism, population, ecosystem, community. C) Organism, population, community, ecosystem. D) Organism, community, ecosystem, population. Show Answer Correct Answer: C) Organism, population, community, ecosystem. 4. Limiting Factor:definition A) Any factor that slows the speed of alpaca. B) Any factor that slows growth in an ecosystem. C) Any factor that slows population growth. D) Any factor that slows community growth. Show Answer Correct Answer: C) Any factor that slows population growth. 5. A producer that makes their own food is also called A) Consumer. B) Detrivorous. C) Heterotroph. D) Autotroph. Show Answer Correct Answer: D) Autotroph. 6. Mice eat grain laced with rat poison, but don't die immediately. Snakes eat these mice and then the snakes are soon eaten by a hawk. Which of these organisms would have the highest level of the rat poison if it biomagnifies? A) The hawk. B) The mouse. C) The snake. D) The grain. Show Answer Correct Answer: A) The hawk. 7. Bacteria is ..... A) Biotic. B) Abiotic. Show Answer Correct Answer: A) Biotic. 8. A large area that has a particular climate, particular plants and particular animals is a A) Ecosystem. B) Biosphere. C) Biome. D) Ecology. Show Answer Correct Answer: C) Biome. 9. Obtain energy by consuming organic molecules made by other organisms A) Consumer. B) Biomass. C) Chemosynthesis. D) Decoposer. Show Answer Correct Answer: A) Consumer. 10. The Earth's food chain starts with: A) Zooplankton. B) Plants. C) Carnivores. D) Proteins. Show Answer Correct Answer: B) Plants. 11. A group of different populations that live together A) Species. B) Population. C) Friendships. D) Community. Show Answer Correct Answer: D) Community. 12. Which of the following limiting factors is NOT a density independent limiting factor? A) Land development. B) Pollution. C) Disease. D) Natural disasters. Show Answer Correct Answer: C) Disease. 13. A group of deer, chipmunks, otters, and insects is a ..... A) Ecosystem. B) Population. C) Organism. D) Community. Show Answer Correct Answer: D) Community. 14. What is the role of dead leaves in an ecosystem? A) Provides nutrients to other plants. B) Prevents fungus from growing at the base of a tree. C) Provides shelter to growing seeds. D) Releases chlorophyll into the grass as they decay. Show Answer Correct Answer: A) Provides nutrients to other plants. 15. Bacteria are important in the nitrogen cycle because they A) Help convert nitrogen into a form that organisms can use. B) Respire, returning carbon dioxide into the atmosphere. C) Decay and eventually form fossil fuels. D) Produce sugars that plants can use. Show Answer Correct Answer: A) Help convert nitrogen into a form that organisms can use. 16. An animal that is eaten is called ..... A) Predator. B) Prey. Show Answer Correct Answer: B) Prey. 17. Radioactive decay A) Types of reactions. B) Alloy. C) Reaction decay. D) Radioactive decay. Show Answer Correct Answer: D) Radioactive decay. 18. The Eagle in the food web represents a: A) Primary Comsumer. B) Tertiary Comsumer. C) Secondonary Comsumer. D) Producer. Show Answer Correct Answer: B) Tertiary Comsumer. 19. The source of all energy transferred among organisms is ..... A) Plant matter. B) Oxygen. C) The ocean. D) The Sun. Show Answer Correct Answer: D) The Sun. 20. Why are bees considered a keystone species? A) They sting when threatened. B) They live in hives. C) They pollinate flowers that produce fruit which supports the ecosystem. D) The honey they make supports the bear population. Show Answer Correct Answer: C) They pollinate flowers that produce fruit which supports the ecosystem. 21. Which best defines a population? A) All the organisms in an ecosystem. B) All the animals that share similar anatomical features. C) All the animals that acquire resources through similar methods. D) All the interbreeding members of a certain species in an ecosystem . Show Answer Correct Answer: D) All the interbreeding members of a certain species in an ecosystem . 22. The three domains of Biosphere are: A) Land, water and air. B) Land, plants and animals. C) Land, mountain and air. D) Land, human beings and water. Show Answer Correct Answer: A) Land, water and air. 23. What impact does deforestation have on the carbon cycle? A) Increase in amount of photosynthesis. B) Increase in amount of CO2 in the atmosphere. C) Increase in the amount of cellular respiration performed by autotrophs. D) Decrease in amount of CO2 in the atmosphere. Show Answer Correct Answer: B) Increase in amount of CO2 in the atmosphere. 24. Problem caused by increased levels of CFC's in the atmosphere A) Ozone depletion. B) Greenhouse effect. C) Global warming. D) Thermal pollution. Show Answer Correct Answer: A) Ozone depletion. 25. Eats other organisms A) Autotroph. B) Consumer. C) Decoposer. D) Producer. Show Answer Correct Answer: B) Consumer. 26. A very big fish- A) A horse. B) A whale. C) A donkey. D) A goat. Show Answer Correct Answer: B) A whale. 27. Which is NOT an example of limiting factors? A) Predation. B) Food source. C) Migration. D) Space. Show Answer Correct Answer: C) Migration. 28. An abiotic factor is: A) A non-living organic molecule affecting and ecosystem. B) A non-living factor affecting ecosystems such as sunlight. C) A living factor that affects ecosystems such as the number of prey available. D) A living molecule affecting an ecosystem. Show Answer Correct Answer: B) A non-living factor affecting ecosystems such as sunlight. 29. Grass$\rightarrow$rabbit $\rightarrow$ fox A) Food chain. B) Food web. C) Energy pyramid. D) None of above. Show Answer Correct Answer: A) Food chain. 30. An organism that gets energy from eating dead organisms, non-living material or waste A) Producer. B) Consumer. C) Decoposer. D) None of above. Show Answer Correct Answer: C) Decoposer. 31. A new pathogen can wipe out a species because the species has no ..... to the new pathogen A) Camouflage. B) Defence. C) Antibiotics. D) Resistance. Show Answer Correct Answer: D) Resistance. 32. Which of the following take carbon dioxide out of the atmosphere? A) Plant and animal respiration. B) Volcanoes. C) Combustion of fossil fuels. D) Photosynthesis. Show Answer Correct Answer: D) Photosynthesis. 33. Due to fairly constant rain and high temperatures, the vegetation in the rainforest is very dense. Which of the following is an adaptation that helps plants win the battle for sunlight on the forest floor? A) Leaves that are needle-like. B) Vines that climb trees. C) Trees that are cone-shaped. D) Grasses that grow in clumps. Show Answer Correct Answer: B) Vines that climb trees. 34. Which of the following is NOT an example of symbiosis A) Parasitism. B) Mutualism. C) Commensalism. D) Succession. Show Answer Correct Answer: D) Succession. 35. A type of symbiosis in which both species benefit is called ..... A) Mutualism. B) Commensalism. C) Parasitism. D) None of above. Show Answer Correct Answer: A) Mutualism. 36. Ants live inside the acacia plant and in return defend the plant from herbivores. Which type of symbiotic relationship is this? A) Parasitism. B) Commensalism. C) Beneficialism. D) Communism. E) Mutualism. Show Answer Correct Answer: E) Mutualism. 37. Which of these is not part of the water cycle A) Evaporation. B) Condensation. C) Precipitation. D) Water fixation. Show Answer Correct Answer: D) Water fixation. 38. Charles wants to see if a solution called 'miracle grower' really affects plant growth. What is the dependent variable? A) The type of plant. B) Miracle grower. C) Height of the plant. D) The type of soil. Show Answer Correct Answer: C) Height of the plant. 39. Producers in the food chain include which of the following? A) Animal. B) Bacteria. C) Microorganism. D) Plant. Show Answer Correct Answer: D) Plant. 40. An organism that breaks down dead organisms and returns nutrients to the soil is called a(n). A) Carnivore. B) Omnivore. C) Decoposer. D) Herbivore. Show Answer Correct Answer: C) Decoposer. 41. If plants die. What will animals run out of? A) Carbon dioxide. B) Water. C) Oxygen. D) None of above. Show Answer Correct Answer: C) Oxygen. 42. An aquatic biome with a high amount of salt. It covers most of the surface of the earth. Which one is it? A) Ponds. B) Marine. C) Estuary. D) Fresh water. Show Answer Correct Answer: B) Marine. 43. Exotic or invasive species leads to all of these problems except A) Disease. B) Loss of native species. C) Increased biodiversity. D) Loss of biodiversity. Show Answer Correct Answer: C) Increased biodiversity. 44. What special adaptations do intertidal species have? A) To resist UV rays. B) To survive exposure to air. C) To survive heavy waves. D) Exposure to air AND survive heay waves. Show Answer Correct Answer: D) Exposure to air AND survive heay waves. 45. This diagram shows the amount of energy that moves from one feeding level to another in a food web. A) Energy Pyramid. B) Food Chain. C) Ecosystem. D) Food Web. Show Answer Correct Answer: A) Energy Pyramid. 46. Ecology major is the study of ecology at the individual level. What level of education is this? A) Organism เนเธฅเธฐ community. B) Organ and organism. C) Community เนเธฅเธฐ population. D) Organism and population. Show Answer Correct Answer: D) Organism and population. 47. Which major biome's lack of precipitation limits plant grow and is home to cacti, mesquite, white thorn, pack rats, small reptiles, birds, antelope, lizards, fox, snakes, bob cats and coyotes? A) Desert. B) Taiga. C) Tundra. D) Grassland. Show Answer Correct Answer: A) Desert. 48. All biotic and abiotic factors are ..... A) Different. B) Connected. C) Identical. D) Word Individually. Show Answer Correct Answer: B) Connected. 49. What is the process during which water cools and turns from a gas to a liquid? A) Runoff. B) Precipitation. C) Condensation. D) Evaporation. Show Answer Correct Answer: C) Condensation. 50. Is Climate Change false and invented by scientology to destroy capitalism? A) This question is just a joke obviously:D. B) Yes. C) If you answer "yes" you have failed as a rational human:(. D) NO. Show Answer Correct Answer: D) NO. 51. Both prokaryotes and eukaryotes A) Have a nucleus. B) Do not have DNA. C) Have DNA. D) Have DNA in the form of chromosomes. Show Answer Correct Answer: C) Have DNA. 52. The VARIETY of life on Earth A) Biosphere. B) Population. C) Carrying Capacity. D) Biodiversity. Show Answer Correct Answer: D) Biodiversity. 53. Mites living on the outer surface of human skin obtain food by eating dead skin cells and neither harm nor benefit. A) Evolution. B) Mutualism. C) Commensalism. D) Parasitism. Show Answer Correct Answer: C) Commensalism. 54. Biome with decent moisture, trees that lose leaves, like SRR: A) Temperate Deciduous Forests. B) Desert. C) Temperate Rainforests. D) Grasslands. E) Tropical Savanna. Show Answer Correct Answer: A) Temperate Deciduous Forests. 55. The interaction between animals of the same species, generally involving some form of communication. A) Response. B) Reflex. C) Innate behavior. D) Social behavior. Show Answer Correct Answer: D) Social behavior. 56. Bacteria fix nitrogen on plant roots. Plant roots provide sugar to bacteria. This is an example of A) Parasitism. B) Competition. C) Mutualism. D) Commensalism. Show Answer Correct Answer: C) Mutualism. 57. What happens when a population overgrows the carrying capacity? A) The death rate rises. B) The birth rate rises. C) The death rate falls. D) The birth rate doubles. Show Answer Correct Answer: A) The death rate rises. 58. Which statement best defines ecology? A) The study of how living things interact with each other and with their environment. B) The study of how living things interact with each other. Show Answer Correct Answer: A) The study of how living things interact with each other and with their environment. 59. Are we responsible for ..... Creating global warming? orAccelerating the process of global warning? A) Creating Global Warming. B) Accelerating Global Warming. C) Both. D) Neither. Show Answer Correct Answer: B) Accelerating Global Warming. 60. All of the individuals of a given species in a specific area or region at a certain time. A) Population. B) Biome. C) Community. D) None of above. Show Answer Correct Answer: A) Population. โ PreviousNext โRelated QuizzesScience QuizzesGeneral Knowledge QuizzesEcology Quiz 1Ecology Quiz 2Ecology Quiz 3Ecology Quiz 4Ecology Quiz 5Ecology Quiz 6Ecology Quiz 7Ecology Quiz 8 ๐ Back to Homepage ๐ Download PDF Books ๐ Premium PDF Books