This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Earth > Ecology – Quiz 74 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 74 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Your room is messy. Please ..... all your clothes. A) Pick up. B) Pick. C) Wash. D) Save. Show Answer Correct Answer: A) Pick up. 2. A limiting factor is ..... A) Anything that can DECREASE a population. B) Anything that can INCREASE a population. Show Answer Correct Answer: A) Anything that can DECREASE a population. 3. To survive and breed successfully organisms need to be ..... A) Well adapted for where they live. B) Large for where they live. C) Small for where they live. D) Genetically superior to all other living organisms. Show Answer Correct Answer: A) Well adapted for where they live. 4. What type of relationship between organisms is one in which one organism benefits and the other is not affected? An example of this are sharks and remora fish. A) Predation. B) Commensalism. C) Mutualism. D) Parasitism. Show Answer Correct Answer: B) Commensalism. 5. A primary consumer is considered an? A) Carnivore. B) Decoposer. C) Herbivore. D) Omnivore. Show Answer Correct Answer: C) Herbivore. 6. If a population grows larger than the carrying capacity of the environment, the population is likely to A) Decrease. B) Increase. C) Stay the same. D) None of above. Show Answer Correct Answer: A) Decrease. 7. What activity is increasing green house gases? A) Ocean and air currents. B) Volcanic activity. C) Plants activity. D) Human activity. Show Answer Correct Answer: D) Human activity. 8. How do turtles release excess salt? A) Through their sweat. B) Through their tongue. C) Through tears. D) Through their nose-sneezing. Show Answer Correct Answer: C) Through tears. 9. What type of symbiosis? *Hookworms can enter the body, live off of the host's blood. *The host can suffer from blood loss, anemia and iron deficiency. A) Predation. B) Commensalism. C) Mutualism. D) Parasitism. Show Answer Correct Answer: D) Parasitism. 10. What fraction of amphibians are threatened with extinction A) 1/10. B) 1/2. C) 1/3. D) None of above. Show Answer Correct Answer: C) 1/3. 11. Which is a problem with using wind turbines to produce energy? A) Wind turbines are efficient only in certain areas. B) Wind turbines occupy a small area of land. contracts. C) Wind turbines produce a large amount of energy. D) Wind turbines create a large amount of pollution. Show Answer Correct Answer: A) Wind turbines are efficient only in certain areas. 12. All the populations in an ecosystem are called A) Ecosystem. B) Population. C) Community. D) Niche. Show Answer Correct Answer: C) Community. 13. When ONE species/organism BENEFITS and the other organism is NOT HARMED or HELPED A) Predation. B) Mutualism. C) Commensalism. D) Parasitism. Show Answer Correct Answer: C) Commensalism. 14. As you move up an energy pyramid, energy is ..... A) Eaten. B) Lost. C) Mixed. D) Gained. Show Answer Correct Answer: B) Lost. 15. Just one species in a given area is called a A) Community. B) Population. C) Habitat. D) None of above. Show Answer Correct Answer: B) Population. 16. Which of the following is NOT a conservation method used to maintain biodiversity? A) Botanic garden. B) Sperm bank. C) Protected reserve. D) Genetic engineering. Show Answer Correct Answer: D) Genetic engineering. 17. All the living organisms in an area together with the non-living environment. A) Community. B) Ecosystem. C) Biosphere. D) Population. Show Answer Correct Answer: B) Ecosystem. 18. Carnivores that eat freshly dead organisms are A) Decomposers. B) Omnivores. C) Scavengers. D) Herbivores. Show Answer Correct Answer: C) Scavengers. 19. A ..... is a large area characterized by its climate and the plants and animals that live in the area A) Stadium. B) Biome. C) Oasis. D) Wasteland. Show Answer Correct Answer: B) Biome. 20. If trophic level 1 has 450, 000 kcal how much energy would be at trophic level 4? A) 45, 000. B) 450. C) 45. D) 4, 500. Show Answer Correct Answer: B) 450. 21. True or False:Healthy ecosystems have many species that interact with eachother in a variety of ways, to form a web of relationships. A) True. B) False. Show Answer Correct Answer: A) True. 22. Processes responsible for the transformation an recuperation of the bioelements of nature within the biosphere A) Geological Cycles. B) Biogeochemical Cycles. C) Ecological Succession. D) Life Cycles. Show Answer Correct Answer: B) Biogeochemical Cycles. 23. Which describes the relationship between plants and animals in the carbon cycle? A) Plants produce and release oxygen that animals need. B) Plants produce and release carbon dioxide that animals need. C) Animals produce and release oxygen that plants need. D) Animals produce oxygen that plants turn into carbon dioxide. Show Answer Correct Answer: A) Plants produce and release oxygen that animals need. 24. Choose the right meaning:environment A) To recycle. B) To save. C) Around the. D) None of above. Show Answer Correct Answer: C) Around the. 25. Pesticides and herbicides eventually show up in higher level consumers due to A) Habitat destruction. B) Bioaccumulation. C) Fertilizer runoff. D) Climate change. Show Answer Correct Answer: B) Bioaccumulation. 26. What are organisms that use other organisms for food in order to gain energy? A) Consumers. B) Producers. C) Decomposers. D) Herbivores. Show Answer Correct Answer: A) Consumers. 27. What two levels make up a scientific name? A) Genus and order. B) Genus and species. C) Domain and kingdom. D) Family and genus. Show Answer Correct Answer: B) Genus and species. 28. The part of the earth that can support life is the ..... A) Biomes. B) Community. C) Ecosystem. D) Biosphere. Show Answer Correct Answer: D) Biosphere. 29. Three factors can affect population size A) Deaths, birth, buildings. B) Photosynthesis, weather, deaths. C) Births, deaths, leaves or enters population. D) Houses, weather, heath. Show Answer Correct Answer: C) Births, deaths, leaves or enters population. 30. Mark and recapture A) Count each and every individualdifficult to do. B) Observe the signs of orgamismsestimation. C) Approximation based on reasonable assumptioncount number in small area and multiply for larger areas. D) Catch and mark an organism, release, and catch more at a later timeuse a mathematical formula to estimate a total population. Show Answer Correct Answer: D) Catch and mark an organism, release, and catch more at a later timeuse a mathematical formula to estimate a total population. 31. Abiotic factors:examples A) Water, air, rocks, fish. B) Water, bacteria, rocks, soil. C) Water, air, rocks, soil. D) Water, air, small mammals, soil. Show Answer Correct Answer: C) Water, air, rocks, soil. 32. Primary production in terrestrial ecosystems are mainly limited by A) Light and temperature. B) Light and nutrients. C) Precipitation and temperature. D) Precipitation and nutrients. Show Answer Correct Answer: C) Precipitation and temperature. 33. What human activity is the main cause of acid rain? A) Volcanoes. B) Coal power plants / power stations. C) Cars. D) Deforestation. Show Answer Correct Answer: B) Coal power plants / power stations. 34. People need it to breathe A) Oxygen. B) Sewage. C) Water. D) Dumping site. Show Answer Correct Answer: A) Oxygen. 35. Which of the following is regarded as a DIRECT value derived from biodiversity conservation? A) Removal of CO2 from the atmosphere by plants. B) Sustaining environmental services for future generations. C) Foreign exchange brought into the country through tourism. D) Reduction in the loss of nutrients in topsoil in forested areas during heavy rainfall. Show Answer Correct Answer: C) Foreign exchange brought into the country through tourism. 36. Which level of consumer usually eats the first level consumer? A) Primary consumer. B) Secondary consumer. C) Tertiary consumer. D) None of above. Show Answer Correct Answer: B) Secondary consumer. 37. Which of the following is an example of a organism interacting with an abiotic element in its environment A) A sea turtle burying its egg in sand. B) A whale hunting harbor seals. C) Dolphins communicating with each other. D) A jellyfish stinging its prey. Show Answer Correct Answer: A) A sea turtle burying its egg in sand. 38. True or False:It is possible for a carnivore to be a producer. A) True. B) False. Show Answer Correct Answer: B) False. 39. Which of the following processes can maintain the level of carbon dioxide in the atmosphere? A) Photosynthesis. B) Respiration. C) Combustion. D) ALL OF THEM. Show Answer Correct Answer: D) ALL OF THEM. 40. Which represents the largest group in a food web? A) Herbivores. B) Carnivores. C) Producers. D) Omnivores. Show Answer Correct Answer: C) Producers. 41. Which example below is parasitism? A) Sea anemone and clownfish. B) Tick biting a dog for its blood. C) An owl living in a hole in a tree. D) None of above. Show Answer Correct Answer: B) Tick biting a dog for its blood. 42. Lichens help to break up newly formed igneous rock that will eventually form soil. Lichens are ..... A) Pioneer Species. B) Consumers. C) Producers. D) Limiting Factors. Show Answer Correct Answer: A) Pioneer Species. 43. It is the study of interactions of microorganisms with the environment, each other, plants, and animals. A) Microbial Ecology. B) Organism Ecology. C) Microorganism study. D) Microbial Ecology. Show Answer Correct Answer: A) Microbial Ecology. 44. Water moving through plants and back into the atmosphere. A) Precipitation. B) Transpiration. C) Perspiration. D) Condensation. Show Answer Correct Answer: B) Transpiration. 45. Organisms that survive in extreme conditions are called: A) Extremophiles. B) Non-living. C) Hardophiles. D) Thermochromatic. Show Answer Correct Answer: A) Extremophiles. 46. What is compost? A) Food. B) Plant material. C) Organic materials turn to soil. D) Fertilizer. Show Answer Correct Answer: C) Organic materials turn to soil. 47. We can say that ecology..... A) E. B) I. C) A. D) C. Show Answer Correct Answer: C) A. 48. One solution for reducing the amount of atmospheric carbon dioxide would be to A) Decrease the use of fossil fuels. B) Increase oceanic temperatures to enhance carbon dioxide uptake. C) Increase the rate of removal of tropical rain forests. D) Decrease the total area of rice paddies. Show Answer Correct Answer: A) Decrease the use of fossil fuels. 49. What is an example of an abiotic habitat? A) Outer space. B) A virus. C) A big dinosaur. D) A lake. Show Answer Correct Answer: D) A lake. 50. Which term refers to the study of organisms and their interactions within the environment? A) Niche. B) Biosphere. C) Habitat. D) Ecology. Show Answer Correct Answer: D) Ecology. 51. ..... biodiversity ecosystems have many different species of organisms. A) High. B) Low. Show Answer Correct Answer: A) High. 52. What is meant by structural adaptations? A) These are features of an organism's body structure. B) There are no such things as structural adaptations. C) These are ways that organisms behave. D) These are things that go on inside an organism's body. Show Answer Correct Answer: A) These are features of an organism's body structure. 53. All the energy in an ecosystem comes from the ..... A) Oil. B) Sun. C) Plants. D) Animals. Show Answer Correct Answer: B) Sun. 54. A species, that if removed, would cause a major change in the ecosystem is a ..... A) Dominant Species. B) Keystone Species. C) Native Species. D) Hybrid Species. Show Answer Correct Answer: B) Keystone Species. 55. How much energy is available at the next trophic level? A) 0%. B) 10%. C) 20%. D) 90%. Show Answer Correct Answer: B) 10%. 56. A secondary consumer that eats a primary consumer is called A) Decoposer. B) Herbivore. C) Carnivore. D) Omnivore. Show Answer Correct Answer: C) Carnivore. 57. Indirect observation A) Count each and every individualdifficult to do. B) Observe the signs of orgamismsestimation. C) Approximation based on reasonable assumptioncount number in small area and multiply for larger areas. D) Catch and mark an organism, release, and catch more at a later timeuse a mathematical formula to estimate a total population. Show Answer Correct Answer: B) Observe the signs of orgamismsestimation. 58. Which symbols best describe commensalism? A) +, -. B) +, 0. C) +, +. D) 0, 0. Show Answer Correct Answer: B) +, 0. 59. Which is NOT a threat to amphibian species A) Pond building. B) Pollution. C) Habitat destruction. D) None of above. Show Answer Correct Answer: A) Pond building. 60. Non-living parts of an ecosystem such as wind, rocks and water are called A) Biotic factors. B) Abiotic factors. Show Answer Correct Answer: B) Abiotic factors. ← 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