This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Earth > Ecology – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 4 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Symbiotic relationship in which both organisms benefit A) Mutualism. B) Population. C) Parasitism. D) Commensalism. Show Answer Correct Answer: A) Mutualism. 2. A relationship between two organisms where both organisms are helped is known as ..... A) Mutualism. B) Commensalism. C) A Competition Relationship. D) A Parasitic Relationship. Show Answer Correct Answer: A) Mutualism. 3. Which of the following are fossil fuels? A) Coal, water, oil. B) Oxygen, coal, oil. C) Coal, Oil, Natural Gas. D) None of the above. Show Answer Correct Answer: C) Coal, Oil, Natural Gas. 4. What happens to the energy at each trophic level in the energy pyramid? A) It decreases. B) It decreases because only 10% energy at each level is transferred. C) Doesn't change. D) It increases. Show Answer Correct Answer: B) It decreases because only 10% energy at each level is transferred. 5. What is the symbiotic relationship called which one organism is helped and the other organism is neither harmed nor helped? A) Mutualism. B) Commensalism. C) Parasitism. D) Consumer. Show Answer Correct Answer: B) Commensalism. 6. This biome receives less than ten inches of rainfall per year, and is very hot. A) Taiga. B) Desert. C) Deciduous Forest. D) Rainforest. Show Answer Correct Answer: B) Desert. 7. Which biome has four distinct seasons, a moderate amount of precipitation, and the trees lose their leaves during winter? A) Coniferous forest. B) Tropical rainforest. C) Temperate deciduous rainforest. D) Grassland. Show Answer Correct Answer: C) Temperate deciduous rainforest. 8. Which of the following directly use the Sun's energy to produce their own food? A) Consumers. B) Carnivores. C) Decomposers. D) Producers. Show Answer Correct Answer: D) Producers. 9. The global ecosystem that contains all life: A) Climate. B) Biosphere. C) Atmosphere. D) Biodome. Show Answer Correct Answer: B) Biosphere. 10. Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales. A) Mutualism. B) Parasitism. C) Commensalism. D) None of above. Show Answer Correct Answer: C) Commensalism. 11. A relationship where one organism benefits and one organism is harmed is called ..... Dogs and fleas are an example of this. A) Mutualism. B) Commensalism. C) Parasitism. D) None of above. Show Answer Correct Answer: C) Parasitism. 12. There are many large-mouth bass, a type of fish, living in a small lake near Waco, Texas. How would increased fishing in the lake effect the lake ecosystem? A) Bass would spend more time swimming near the surface. B) Population of bass' prey would decrease. C) Water in the lake would decrease due to more fishing in the lake. D) Predators might starve due to loss of food source. Show Answer Correct Answer: D) Predators might starve due to loss of food source. 13. The Savannah would be considered what biome? A) Desert. B) Tundra. C) Grassland. D) Shrubland. Show Answer Correct Answer: A) Desert. 14. Which is faster:Primary or Secondary Succession? A) Primary Succession. B) Secondary Succession. C) Both Take The Same Amount of Time. D) None of above. Show Answer Correct Answer: B) Secondary Succession. 15. Where and when an organisms feeds is a behavioral factor that helps define its niche. A) True. B) False. Show Answer Correct Answer: A) True. 16. The diagram represents different levels of a marine energy pyramid. Between which two levels is the greatest amount of energy transferred? A) R and Q. B) S and R. C) T and S. D) U and T. Show Answer Correct Answer: D) U and T. 17. The symbiotic relationship between a flower and the insect that feeds on its nectar is most likely an example of A) Mutualism because the flower provides the insect with food, and the insect pollinates the flower. B) Parasitism because the insect lives off the nectar from the flower. C) Commensalism because the insect does not harm the flower and the flower does not benefit from the relationship. D) Predation because the insect feeds on the flower. Show Answer Correct Answer: A) Mutualism because the flower provides the insect with food, and the insect pollinates the flower. 18. The area on Earth where all life exists is called the A) Ecosystem. B) Community. C) Biome. D) Biosphere. Show Answer Correct Answer: D) Biosphere. 19. Which of the following organisms from the Amazon Rainforest is able to produce its own food? A) The Amazon River Dolphin. B) Giant Water Lilies. C) Giant River Otter. D) To jaguar. Show Answer Correct Answer: B) Giant Water Lilies. 20. Organisms that break down dead plant and animal matter into simpler compounds A) Decomposers. B) Consumers. C) Scavengers. D) Producers. Show Answer Correct Answer: A) Decomposers. 21. Takara says that all insects are consumers. Which of the following would support Takara's statement? A) Insects get their energy by eating plants or animals. B) Insects are able to make their own food. C) Insects get their energy from the air. D) Insects are able to live without energy. Show Answer Correct Answer: A) Insects get their energy by eating plants or animals. 22. What best describes the term succession? A) Rapid changes that create an ecosystem overnight. B) Gradual changes over time to fully create or restore and ecosystem. C) Forest with the tallest trees. D) The rate species produce offspring. Show Answer Correct Answer: B) Gradual changes over time to fully create or restore and ecosystem. 23. Which energy level is a single pathway? A) Food chain. B) Food web. Show Answer Correct Answer: A) Food chain. 24. Which process is considered to be a part of the carbon cycle? A) Condensation. B) Photosynthesis. C) Precipitation. D) Metamorphosis. Show Answer Correct Answer: B) Photosynthesis. 25. The rivalry between organisms for resources such as food, water, shelter, mates, etc. A) Symbiosis. B) Parasitism. C) Adaptation. D) Competition. Show Answer Correct Answer: D) Competition. 26. As energy flows through an ecological pyramid ..... A) 10% of available energy is passed to each increasing trophic level. B) 30% of energy is gained at each increasing trophic level. C) Same amount of energy in all trophic levels. D) Energy increases from the bottom to top of pyramid. Show Answer Correct Answer: A) 10% of available energy is passed to each increasing trophic level. 27. Over time, useful traits such as long legs become more common in a population of wading birds as a result of A) Variations in the environment. B) Staying together in a large flock. C) Selective breeding. D) Natural selection. Show Answer Correct Answer: D) Natural selection. 28. Many populations together make a A) Species. B) Community. C) Ecosystem. D) Individual. Show Answer Correct Answer: B) Community. 29. One species benefits, the other species is harmed A) Mutualism. B) Commensalism. C) Parasitism. D) Symbiosis. Show Answer Correct Answer: C) Parasitism. 30. An abiotic or biotic factor that controls the number of individuals within a population A) Habitat. B) Niche. C) Community. D) Limiting factor. Show Answer Correct Answer: D) Limiting factor. 31. What does a Primary Consumer eat? A) Tertiary Consumers. B) Secondary Consumers. C) Producers. D) None of above. Show Answer Correct Answer: C) Producers. 32. The number and range of different species found in an ecosystem are called its A) Species diversity. B) Community. C) Abiotic factors. D) Biotic factors. Show Answer Correct Answer: A) Species diversity. 33. A close relationship between two species that benefits at least one of the species. A) Symbiosis. B) Competition. C) Niche. D) Predation. Show Answer Correct Answer: A) Symbiosis. 34. What is an example of a collection source? A) Lithosphere. B) The birds. C) Animals. D) Breakers. Show Answer Correct Answer: A) Lithosphere. 35. Net primary productivity (NPP) is A) The transfer of energy through an ecosystem. B) The amount of organic material made in photosynthesis. C) The amount of energy reaching the earth's surface. D) The amount of organic material available to herbivores. Show Answer Correct Answer: D) The amount of organic material available to herbivores. 36. If the population of grizzly bears gradually increases over time, which of the following will most likely occur? A) The number of prey species will decrease. B) The size of the bear population will continue to increase. C) The bear population in that area will eventually die out. D) The number of prey species will increase. Show Answer Correct Answer: A) The number of prey species will decrease. 37. An organization that creates its own food: A) Consumer. B) Producer. C) Squirrel. D) Director. Show Answer Correct Answer: B) Producer. 38. The following diagrams represent a pyramid of numbers for two different ecosystems. What is the tertiary consumer for the aquatic ecosystem? A) Sea lion. B) Phytoplankton. C) Herring. D) Zooplankton. Show Answer Correct Answer: A) Sea lion. 39. What law best relates to energy loss within an ecosystem? A) Law of conservation of matter. B) Second law of thermodynamics. C) First law of thermodynamics. D) Third law of thermodynamics. Show Answer Correct Answer: B) Second law of thermodynamics. 40. After a volcanic eruption, volcanic rock is present (but no soil). Which of the following states the most likely order of succession that would be seen? A) Lichens $\rightarrow$ tree $\rightarrow$ shrubs$\rightarrow$Grasses. B) Lichens $\rightarrow$ Grasses $\rightarrow$ Shrubs $\rightarrow$ Trees. C) Lichens $\rightarrow$ Shrubs $\rightarrow$ Grasses $\rightarrow$ Trees. D) Grasses $\rightarrow$ Lichens $\rightarrow$ Shrubs $\rightarrow$ Trees. Show Answer Correct Answer: B) Lichens $\rightarrow$ Grasses $\rightarrow$ Shrubs $\rightarrow$ Trees. 41. What Tundra Has The Polar Bear? A) Arctic. B) Alpine. Show Answer Correct Answer: A) Arctic. 42. Which are examples of abiotic factors? A) Humans, other members of the same species. B) Any living factor. C) Mutualism, commensalism, parasitism. D) Wind, humidity, acidity. Show Answer Correct Answer: D) Wind, humidity, acidity. 43. A population is ..... A) A group of one species in one area at one time. B) Multiple species that live in one area. C) All of the living and nonliving things in an area. D) None of these. Show Answer Correct Answer: A) A group of one species in one area at one time. 44. A semi-enclosed area where fresh water from a river meets salty water from the sea. A) Estuary. B) Ocean. C) Watershed. D) Groundwater. Show Answer Correct Answer: A) Estuary. 45. ..... is a particular area where an animal, plant, or organism lives. A) An abiotic factor. B) A niche. C) An ecosystem. D) To habitat. Show Answer Correct Answer: D) To habitat. 46. A relationship in which one organism benefits but the other is harmed is called ..... A) Mutualism. B) Parasitism. C) Succession. D) Commensalism. Show Answer Correct Answer: B) Parasitism. 47. In a large Maine forest with many animals and lots of space, there are only a small number of bears. Which of these most likely limits the population of bears in the forest? A) Supply of food. B) Living space. C) Cloud cover in the atmosphere. D) None of above. Show Answer Correct Answer: A) Supply of food. 48. For a given species, the maximum rate of increase per individual under ideal condition is A) Territorial behavior. B) Carrying capacity. C) Biotic potential. D) Environmental resistance. Show Answer Correct Answer: C) Biotic potential. 49. Which answer best describes a decomposser? A) An organism that produces oxygen. B) An organism that is dead and decomposing. C) An organism that is not natures recycler. D) An organism that gets energy by breaking down dead organisms. Show Answer Correct Answer: D) An organism that gets energy by breaking down dead organisms. 50. Factors plants compete for include: A) Space and light. B) Space, light and water. C) Space, light, water and mineral ions. D) Space, light, water, mineral ions and chloroplasts. Show Answer Correct Answer: C) Space, light, water and mineral ions. 51. ONE organism gets HELPED in the relationship and the other is HARMED A) Commensalism. B) Competition. C) Parasitism. D) Mutualism. Show Answer Correct Answer: C) Parasitism. 52. What is another name for consumers? A) Autotroph. B) Heterotroph. Show Answer Correct Answer: B) Heterotroph. 53. Plants under direct sunlight are known as A) Psamophytes. B) Sciophytes. C) Heliophytes. D) Dicots. Show Answer Correct Answer: C) Heliophytes. 54. Two animals, one benefits, the other is not affected. A) Mutualism. B) Commensalism. C) Parasitism. D) None of above. Show Answer Correct Answer: B) Commensalism. 55. Increasing business, cultural and other contacts between countries A) Globalisation. B) World population. Show Answer Correct Answer: A) Globalisation. 56. As resources become less available the growth of a population A) In or out. B) Up or down. C) Slows or stops. D) Decreases or increases. Show Answer Correct Answer: C) Slows or stops. 57. Animals that eat plants and trees. A) Carnivores. B) Herbivores. C) Omnivores. D) None of above. Show Answer Correct Answer: B) Herbivores. 58. The study of interactions that take place among organisms and their environment. A) Ecology. B) Ecosystem. C) Habitat. D) Community. Show Answer Correct Answer: A) Ecology. 59. A food web shows how energy flows through an ecosystem. A) False. B) True. Show Answer Correct Answer: B) True. 60. Who is considered to be the "Father of Evolution" ? A) Charlie Chaplin. B) Charles Dickens. C) Charles Darwin. D) Prince Charles. Show Answer Correct Answer: C) Charles Darwin. ← PreviousNext →Related QuizzesScience QuizzesGeneral Knowledge QuizzesEcology Quiz 1Ecology Quiz 2Ecology Quiz 3Ecology Quiz 5Ecology Quiz 6Ecology Quiz 7Ecology Quiz 8Ecology Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books