This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Earth > Ecology – Quiz 61 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 61 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Ecology can be divided into Sinecology & Autoecology. A) True. B) False. Show Answer Correct Answer: A) True. 2. Symbiotic relationship in which both species benefit from each other A) Mutualism. B) Parasitism. C) Commensalism. D) None of above. Show Answer Correct Answer: A) Mutualism. 3. Two or more members of a particular species living and interacting in the same area are called a ..... A) Organisms. B) Biosphere. C) Community. D) Population. Show Answer Correct Answer: D) Population. 4. I don't have anything to do. I am ..... A) Happy. B) Tired. C) Sad. D) Bored. Show Answer Correct Answer: D) Bored. 5. What is not one of the main causes of habitat loss A) Land loss. B) Slash and burn agriculture. C) Nonnative species. D) Planting trees. Show Answer Correct Answer: D) Planting trees. 6. Organisms that can make their own food do so by the process of: A) Photosynthesis. B) Decomposition. C) Scavenging. D) Respiration. Show Answer Correct Answer: A) Photosynthesis. 7. A warmer Earth may lead to A) Changes in climate. B) A rise in sea level due to the expansion of sea water. C) The melting of the ice caps. D) All of the above. Show Answer Correct Answer: D) All of the above. 8. The process that breaks down food into simple materials that an animal's body can use is called ..... A) Digestion. B) Photosynthesis. C) Circulation. D) Respiration. Show Answer Correct Answer: A) Digestion. 9. What is the role of fungi in food webs? A) Scavenger. B) Producer. C) Bacteria. D) Decoposer. Show Answer Correct Answer: D) Decoposer. 10. When 2 organisms fight for the same resource A) Cooperation. B) Predation. C) Prey. D) Competition. Show Answer Correct Answer: D) Competition. 11. What is the definition of a community? A) Any living thing. B) One single individual. C) All the individuals of one kind in one area. D) All of the populations living in one area. Show Answer Correct Answer: D) All of the populations living in one area. 12. The process of water passing from earth, to the atmosphere, and back to earth, continuously. A) The Water Cycle. B) Condensation. C) Rain. D) Precipitation. Show Answer Correct Answer: A) The Water Cycle. 13. Competition definition A) An interaction that occur when 2 or more individuals or population compete for limited resources. B) An interaction between species, the predator or eats the prey. C) A symbiotic interaction in which one organism live on other for benefit and the host get harmful. D) Produce entrain. Show Answer Correct Answer: A) An interaction that occur when 2 or more individuals or population compete for limited resources. 14. Organisms release carbon dioxide gas through a process called A) Respiration. B) Photosynthesis. C) Nitrogen cycle. D) Filtration. Show Answer Correct Answer: A) Respiration. 15. If the plant population decreased, the amount of carbon dioxide in the atmosphere would ..... A) Stay the same. B) Increase. C) Decrease. D) None of above. Show Answer Correct Answer: B) Increase. 16. A frogs bright colors A) Prey. B) False coloring. C) Predator adaption. D) Camo. Show Answer Correct Answer: B) False coloring. 17. All the populations that live in the same place at the same timeare called: A) Ecosystem. B) Community. C) Population. D) Biome. Show Answer Correct Answer: B) Community. 18. How much energy is passed on to the next trophic level each time an organism is eaten? A) 20%. B) 100%. C) 50%. D) 10%. Show Answer Correct Answer: D) 10%. 19. Which of the following could result in Primary Succession? A) Forest Fire. B) Volcano eruption of lava covering all life. C) Mowing the lawn on a hot summer for your entire neighborhood. D) Tsunami. Show Answer Correct Answer: B) Volcano eruption of lava covering all life. 20. This is the energy of vibrating molecules that move through matter. A) Electrical. B) Sound. C) Thermal. D) Mechanical. Show Answer Correct Answer: B) Sound. 21. Which type of competition is responsible for shaping the structure of the community? A) Interspecific. B) Intraspecific. Show Answer Correct Answer: A) Interspecific. 22. Dirty water that pollutes rives. A) Exhaust fumes. B) Sewage. C) Oxygen. D) A dumping site. Show Answer Correct Answer: B) Sewage. 23. What is an example of an area that is likely to undergo primary succession? A) Glaciers melt and leave exposed rock. B) Plants die from drought and decompose. C) Land is bulldozed and soil remains. D) None of above. Show Answer Correct Answer: A) Glaciers melt and leave exposed rock. 24. The smallest unit of life that can sustain itself is called ..... A) A population. B) A community. C) An organism. D) The biosphere. Show Answer Correct Answer: C) An organism. 25. A carrying capacity is A) When your city can't build any more houses. B) When your house can't have any more people in it. C) When you're too heavy for your mom to carry you. D) The largest number of individuals of a population that a given environment can support. Show Answer Correct Answer: D) The largest number of individuals of a population that a given environment can support. 26. A part of the environment that prevents a population from growing to large is a/n ..... A) Abiotic factor. B) Biotic factor. C) Limiting factor. D) None of above. Show Answer Correct Answer: C) Limiting factor. 27. In a food web that contains bacteria, what is the usual function of this organism? A) Nutrient production. B) Decomposition of organic material. C) Food source for primary consumers. D) To make the organisms sick. Show Answer Correct Answer: B) Decomposition of organic material. 28. What is the name of the green pigment in plants that absorbs sunlight for photosynthesis? A) Heterotroph. B) Autotroph. C) Chlorophyll. D) Borophyll. Show Answer Correct Answer: C) Chlorophyll. 29. Is this animal died A) No. B) How. C) Why. D) Yes. Show Answer Correct Answer: A) No. 30. Which of the following is the smallest level of organization? A) Biosphere. B) Population. C) Biome. D) Species. Show Answer Correct Answer: D) Species. 31. A wrasse fish feeds on the parasites found on the black sea bass's body. Both species benefit. A) Mutualism. B) Parasitism. C) Commensalism. D) None of above. Show Answer Correct Answer: A) Mutualism. 32. True or False:Runoff is water that is absorbed by the ground. A) True. B) False. Show Answer Correct Answer: B) False. 33. Which kind of fossil fuel formed in swamps from once living plants? A) Petroleum. B) Oil. C) Natural gas. D) Coal. Show Answer Correct Answer: D) Coal. 34. (Birth + Immigration)-(Death + Emigration) = A) The developmental quotient. B) Population size. C) Exponential. D) Logistic. Show Answer Correct Answer: B) Population size. 35. Temperature, light, air, water, and soil are all ..... or non-living parts of the environment A) Living. B) Alive. C) Biotic. D) Abiotic. Show Answer Correct Answer: D) Abiotic. 36. Which of the following is NOT a herbivore A) Antelope. B) Zebra. C) Lion. D) None of above. Show Answer Correct Answer: C) Lion. 37. What is the source of all energy? A) Producers. B) Sun. C) Decomposers. D) Consumers. Show Answer Correct Answer: B) Sun. 38. A lion eats a gazelle except horns, hooves, and hair. Lion spends energy getting to the gazelle's food parts. A) Example of energy transfer. B) Example of biomass. C) Example of trophic level. D) None of above. Show Answer Correct Answer: A) Example of energy transfer. 39. What do the arrows in a food chain/web represent? A) That plants produce their own food. B) How the carnivores eat meat. C) What eats what. D) The flow of energy. Show Answer Correct Answer: D) The flow of energy. 40. Building proteins and DNA is the reason organisms need what substance? A) Calcium. B) Water. C) Carbon. D) Nitrogen. Show Answer Correct Answer: D) Nitrogen. 41. Earth cools. Cooler temps make more snow. Snow reflects light, preventing heating. Earth gets cooler. More snow falls and reflects more light. This is an example of: A) Negative feedback. B) Greenhouse effect. C) Validity. D) Carrying capacity. E) Positive feedback. Show Answer Correct Answer: E) Positive feedback. 42. Which term define:The transfer of food energy from primary producer through primary consumer to carnivores and finally to decomposer A) Food web. B) Trophic level. C) Ecological pyramid. D) Food chain. Show Answer Correct Answer: D) Food chain. 43. A bird eating ticks off of a cows back A) Vaderism. B) Mutualism. C) Parasitism. D) Commensalism. Show Answer Correct Answer: B) Mutualism. 44. Why does biodiversity increase during the course of succession? A) Biodiversity refers to the difference in ages of organisms, so some organisms arrive earlier than others. B) Over time, the same trees begin to reproduce and take over an area. C) Many populations of organisms gradually begin to occupy the same area to create a climax community. D) Many organisms move in to the area for a short amount of time, then leave to find a better habitat. Show Answer Correct Answer: C) Many populations of organisms gradually begin to occupy the same area to create a climax community. 45. If a population of a gazelle were to decrease, the population of cheetahs will ..... A) Cheetahs don't eat gazelle. B) Decrease. C) Increase. D) Stay the same. Show Answer Correct Answer: B) Decrease. 46. Cold, dry, treeless region sometimes called a cold desert ..... has permafrost. A) Taiga. B) Tundra. C) Forest. D) Desert. Show Answer Correct Answer: B) Tundra. 47. Food chains show the transfer of ..... in an ecosystem A) Sun. B) Energy. C) Heat. D) Organisms. Show Answer Correct Answer: B) Energy. 48. Non-living things in an ecosystem A) Biotic. B) Abiotic. C) Food web. D) Community. Show Answer Correct Answer: B) Abiotic. 49. Why are there limited numbers of higher predators in an area? A) Limited amount of space. B) Limited amount of prey. C) Limited amount of energy. D) Limited amount of niche. Show Answer Correct Answer: C) Limited amount of energy. 50. Role and position a species has in its environment; how it meets its needs for food and shelter, how it survives, and how it reproduces. A) Heterotroph. B) Niche. C) Abiotic. D) Trophic Level. Show Answer Correct Answer: B) Niche. 51. This is the study of the interactions among organisms and their environments. A) Biology. B) Symbiosis. C) Ecology. D) Food Chain. Show Answer Correct Answer: C) Ecology. 52. Organisms that produce energy during photosynthesis are A) Carnivores. B) Heterotrophs. C) Consumers. D) Autotrophs. Show Answer Correct Answer: D) Autotrophs. 53. All living things and nonliving things in an area A) Ecosystem. B) Population. C) Biosphere. D) None of above. Show Answer Correct Answer: A) Ecosystem. 54. What factor describes when populations decrease because animals are moving out of a population? A) Emigration. B) Limiting Factors. C) Immigration. D) Exponential Growth. Show Answer Correct Answer: A) Emigration. 55. Relationship that exists between organisms of two different species that live together in direct contact A) Symbiosis. B) Competition. Show Answer Correct Answer: A) Symbiosis. 56. A bee is a small ..... A) Bird. B) Insect. C) Honey. D) Cow. Show Answer Correct Answer: B) Insect. 57. The pH of a lake in Florida decreased from 7.0 to 5.0 due to an increase in acid rain. How would this change the biodiversity of the lake? A) Decrease in water temperatures. B) Increase in plankton populations. C) Decrease in fish populations. D) Increase in fish populations. Show Answer Correct Answer: C) Decrease in fish populations. 58. Adaptations that involve internal body systems A) Structural. B) Behavioral. C) Functional. D) None of above. Show Answer Correct Answer: C) Functional. 59. With the help of the Sun, through the process of photosynthesis, carbon dioxide is pulled from the air to make plant ..... A) Food. B) Leaves. C) Roots. D) Nutrients. Show Answer Correct Answer: A) Food. 60. Several food chains linked together A) Food Web. B) Predator Web. C) Prey Web. D) None of above. Show Answer Correct Answer: A) Food Web. ← 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