This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Earth > Ecology – Quiz 28 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 28 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A resource that can replenish itself is ..... A) Renewable. B) Non-renewable. Show Answer Correct Answer: A) Renewable. 2. Why do the populations of invasive species grow so quickly? A) Invasive species have no predators. B) Invasive species are native to an area. C) Invasive species keep the ecosystem in equilibrium. D) Invasive species are prey to many animals. Show Answer Correct Answer: A) Invasive species have no predators. 3. Which is not the characteristics of 'r' selected species? A) A low survival rate of progenies. B) Reproduce quickly. C) Parental care. D) Produce a large number of progenies. Show Answer Correct Answer: C) Parental care. 4. What color of the basket is the paper inserted into? A) Yellow. B) White. C) Green. D) Blue. Show Answer Correct Answer: D) Blue. 5. As resources in a population become less available, an environment reaches its A) Trophic level. B) Limiting factor. C) Exponential growth. D) Carrying capacity. Show Answer Correct Answer: D) Carrying capacity. 6. Dirty water that pollutes river A) Pollution. B) Oxygen. C) Environment. D) Sewage. Show Answer Correct Answer: D) Sewage. 7. Plants and animals cannot use nitrogen directly from the air. A) True. B) False. Show Answer Correct Answer: A) True. 8. Organisms that obtain nutrients by breaking down wastes and dead organisms are A) Herbivores. B) Omnivores. C) Producers. D) Decomposers. Show Answer Correct Answer: D) Decomposers. 9. Lions eat giraffes in savannas. What would happen to the flow of energy if giraffes were affected by disease? A) Remaining giraffes would fight each other for food. B) Less food and energy will be available to lions. C) Lions will begin eating other mammals. D) Trees and shrubs which a giraffe eats would decrease. Show Answer Correct Answer: B) Less food and energy will be available to lions. 10. One organism benefits, the other is neither helped or harmed; clown fish and sea anemones. A) Commensalism. B) Biome. C) Symbiosis. D) Habitat. Show Answer Correct Answer: A) Commensalism. 11. A bee and a flower are in a symbiotic relationship. The bee gets the nutrition it needs from the flower, and the flower is able to spread pollen thanks to the bee. What type of relationship? A) Mutualism. B) Commensalism. C) Parasitism. D) None of above. Show Answer Correct Answer: A) Mutualism. 12. Why are producers found at the base of the pyramid? A) They create all of the energy and therefore have the most energy of all of the trophic levels. B) There are more plants than animals. C) They begin the flow of energy in an ecosystem. D) All of these answers are correct. Show Answer Correct Answer: D) All of these answers are correct. 13. Which statement best describes the role of decomposers? A) They convert carbon dioxide and water to glucose. B) They break down organic compound into products used by other organisms. C) They release oxygen to the atmosphere. D) They provide energy for the synthesis of proteins. Show Answer Correct Answer: B) They break down organic compound into products used by other organisms. 14. Nonliving parts of environment A) Population. B) Biotic factors. C) Habitat. D) Abiotic factors. Show Answer Correct Answer: D) Abiotic factors. 15. Needed for basic life A) A role an organism plays in an environment. B) Can be huge or tiny. C) Air, water, nutrients, sun, temperature. D) It can harm or destroy an ecosystem or distort the natural balance. Show Answer Correct Answer: C) Air, water, nutrients, sun, temperature. 16. Green Mix + ..... = Compost. Choose the answer that should be in the blank area. A) Yellow Mix. B) Red Mix. C) Blue Mix. D) Brown Mix. Show Answer Correct Answer: D) Brown Mix. 17. A region of Earth with a specific climate and organisms adapted to the particular environment A) Producer. B) Detritivore. C) Community. D) Biome. Show Answer Correct Answer: D) Biome. 18. The maintenance of a self-sustaining ecosystem requires a A) Constant temperature. B) Greater number of herbivores than producers. C) Cycling of materials between organisms and their environment. D) Soil that is acidic. Show Answer Correct Answer: C) Cycling of materials between organisms and their environment. 19. How can people change biomes? A) By using canoes & boats to navigate rivers. B) By melting the permafrost with campfires. C) By cutting down trees & polluting the water. D) By raising different kinds of animals on farms. Show Answer Correct Answer: C) By cutting down trees & polluting the water. 20. An underground reservoir of water is known as ..... A) Permafrost. B) Sublimation. C) An Aquifer. D) An Estuary. Show Answer Correct Answer: C) An Aquifer. 21. Through which process do living organisms release carbon into the atmosphere? A) Transpiration. B) Cellular Respiration. C) Combustion. D) Photosynthesis. Show Answer Correct Answer: B) Cellular Respiration. 22. An example of prey: A) Lion. B) Mouse. C) Shark. D) None of above. Show Answer Correct Answer: B) Mouse. 23. Eukaryotic cells are A) Found in plants, animals, and fungi. B) Cells with no membrane bound organelles. C) Less organized than prokaryotic cells. D) Not in possession of a nucleus. Show Answer Correct Answer: A) Found in plants, animals, and fungi. 24. A food ..... consists of many overlapping food ..... A) Pyramid, webs. B) Web, pyramids. C) Chain, webs. D) Web, chains. Show Answer Correct Answer: D) Web, chains. 25. Where does all energy on earth ultimately come from? A) The force. B) The circle of life. C) Plants. D) The sun. Show Answer Correct Answer: D) The sun. 26. The organism that eats the other is called A) Predator/consumer. B) Producer. C) Sun. D) None of above. Show Answer Correct Answer: A) Predator/consumer. 27. Which process converts carbon in the form of sugar into carbon dioxide gas? A) Respiration. B) Photosynthesis. C) Bioremediation. D) Transpiration. Show Answer Correct Answer: A) Respiration. 28. An environment that provides the things an organism needs is its ..... A) Biotic factor. B) Habitat. C) Ecosystem. D) None of above. Show Answer Correct Answer: B) Habitat. 29. A consumer that eats another consumer for energy is known as a ..... A) Primary Consumer. B) Top Level Consumer. C) Secondary Consumer. D) Tertiary Consumer. Show Answer Correct Answer: C) Secondary Consumer. 30. Which of the following is a disadvantage of using wind turbines as a renewable energy source? A) It is noisy and can disrupt nearby environments. B) It is a clean, renewable energy source. C) It is not strong enough to generate electricity. D) It is a different option to reduce the amount of fossil fuels burned. Show Answer Correct Answer: A) It is noisy and can disrupt nearby environments. 31. How does some of the nitrogen get recycled in the nitrogen cycle? A) Animals and plants die, wastes, and lightning. B) Animal dung. C) Lightning. D) Plants die and lightning. Show Answer Correct Answer: A) Animals and plants die, wastes, and lightning. 32. Which of the following is a correct definition for the term 'habitat'? A) The relationship between an organism and other species. B) The interacting community of organisms and the environment. C) The way in which the environment is exploited by the organism. D) A location within a biome where an organisms dwells. Show Answer Correct Answer: D) A location within a biome where an organisms dwells. 33. UN First International Conference on Environment held on A) 1997. B) 1992. C) 1972. D) 1987. Show Answer Correct Answer: C) 1972. 34. How do living organisms return carbon to the atmosphere in the carbon cycle? A) Respiration and photosynthesis. B) Decomposition and respiration. Show Answer Correct Answer: B) Decomposition and respiration. 35. An animal or person that eats only plants. A) Herbivore. B) Carnivore. C) Producer. D) Omnivore. Show Answer Correct Answer: A) Herbivore. 36. Something that is nonliving is called? A) Biotic factors. B) Abiotic factors. C) Limiting factor. D) None of above. Show Answer Correct Answer: B) Abiotic factors. 37. Some examples of biotic factors would be A) Trees. B) Insects. C) Bacteria. D) All of the above. Show Answer Correct Answer: D) All of the above. 38. True or False:Water vapor is the name given to water in liquid form. A) False. B) True. Show Answer Correct Answer: A) False. 39. Which stage of the hydrologic cycle can be the most direct cause of algal blooms? A) Evaporation. B) Transpiration. C) Precipitation. D) Runoff. Show Answer Correct Answer: D) Runoff. 40. When brown tree snakes were accidentally introduced onto the island of Guam, they had no natural predators. These snakes sought out and ate many eggs of insect-eating birds. What probably occurred following the introduction of the brown tree snakes? A) The bird population increased. B) The insect population increased. C) The insect population began to seek a new food source. D) The bird population began to seek a new food source. Show Answer Correct Answer: B) The insect population increased. 41. What is the relationship Mutualism? A) They all get a long and sing and dance. B) It helps both groups of animals or living things (partners). C) It only benefits one group of animals or living things (partners). D) It benefits neither group or living things (partners). Show Answer Correct Answer: B) It helps both groups of animals or living things (partners). 42. A severe drought would have which of the following affects on the frog population? A) The frog population is likely to decrease. B) The frog population is most likely to thrive. Show Answer Correct Answer: A) The frog population is likely to decrease. 43. Which is NOT a type of aquatic ecosystem? A) Ocean. B) Estuary. C) Monastery. D) Wetland. Show Answer Correct Answer: C) Monastery. 44. ..... is the organism's role. A) Niche. B) Adaptation. C) Habitat. D) None of above. Show Answer Correct Answer: A) Niche. 45. What cycle are fossil fuels part of? A) Oxygen. B) Carbon. C) Nitrogen. D) Phosphorus. Show Answer Correct Answer: B) Carbon. 46. Find the correct example of symbiosis. A) Lichen, sea anemone and crayfish. B) The wolf and the hare. C) Bacteria and fungi. D) Parasites. E) Lion and deer. Show Answer Correct Answer: A) Lichen, sea anemone and crayfish. 47. A series of events in which one organism eats another and obtains energy is called a A) Food chain. B) Food web. Show Answer Correct Answer: A) Food chain. 48. Part of the earth that living organisms inhabit ..... A) Ecosystem. B) Biome. C) Niche. D) Biosphere. Show Answer Correct Answer: D) Biosphere. 49. Which compound is the most useful to plants? A) Nitrogen. B) Nitrate. C) Nitrite. D) Nitrogen dioxide. Show Answer Correct Answer: B) Nitrate. 50. Water, Sunlight, Oxygen and Soil are all parts of an organisms ..... environment. A) Biotic. B) Abiotic. C) Living. D) None of above. Show Answer Correct Answer: B) Abiotic. 51. The environment is made up of two factors. What are they? A) Living & Nonliving. B) Earthlings & Aliens. C) Sun & Moon. D) Abiotic & Biotic. Show Answer Correct Answer: D) Abiotic & Biotic. 52. Many more species of plants and animals live in a tropical forest than live in a desert. This difference is most likely due to the fact that, compared to a tropical forest, a desert A) Has less available sunlight. B) Contains soil with sand. C) Contains less water. D) Has more carbon dioxide in the atmosphere. Show Answer Correct Answer: C) Contains less water. 53. Sheep are herbivorous. What can you infer from this? A) They are secondary consumers. B) They are producers. C) They are decomposers. D) They are primary consumers. Show Answer Correct Answer: D) They are primary consumers. 54. During condensation water changes from ..... A) Solid ice to liquid water. B) Liquid water to water vapor (gas). C) Water vapor (gas) to liquid water drops. D) None of above. Show Answer Correct Answer: C) Water vapor (gas) to liquid water drops. 55. All of the following factors affect an areas biodiversity except A) Area. B) Niche diversity. C) Climate. D) The number of endangered species in an area. Show Answer Correct Answer: D) The number of endangered species in an area. 56. Changes in WHICH of the following biotic factors will result in a change of an ecosystem's structure and composition? Check all that apply. A) Nutrient availability. B) Light intensity. C) Temperature. D) Number of trees. Show Answer Correct Answer: D) Number of trees. 57. Carrying capacity is affected by A) Temperature. B) Pioneer species. C) Limiting factors. D) Population growth. Show Answer Correct Answer: C) Limiting factors. 58. Which is a natural cause of ecosystem change? A) Pollution. B) Farming. C) Building fences. D) Hurricane. Show Answer Correct Answer: D) Hurricane. 59. Which of the following contributes to the stability of an ecosystem? A) Sustainable management of woodlands. B) The practice of monoculture. C) A decrease of biodiversity. D) The release of exotic species into an area. Show Answer Correct Answer: A) Sustainable management of woodlands. 60. Secondary succession ..... A) Starts out with soil and is faster than primary. B) Starts out with soil and is slower than primary. C) Does not start out with soil and is faster than primary. D) Does not start out with soil and is slower than primary. Show Answer Correct Answer: A) Starts out with soil and is faster than primary. ← 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