This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Earth > Ecology – Quiz 87 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 87 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The bodies of all living things are based on carbon. Which of the following is the primary source of carbon in living things? A) Dissolved carbon dioxide in the biosphere. B) Carbon compounds in the soil. C) Carbon compounds stored in fossil fuels. D) Carbon dioxide in the atmosphere. Show Answer Correct Answer: D) Carbon dioxide in the atmosphere. 2. The intense heat from Earth's interior that warms the magma beneath Earth's surface is called ..... A) Solar energy. B) Hydrogen power. C) Tidal energy. D) Geothermal energy. Show Answer Correct Answer: D) Geothermal energy. 3. What is the original source of energy in any food web? 5-2.4 A) Carbon dioxide. B) Oxygen. C) Sugar. D) Sunlight. Show Answer Correct Answer: D) Sunlight. 4. Symbiotic relationship where one species benefits and the other isn't helped or hurt. A) Mutualism. B) Predation. C) Commensalism. D) Parasitism. Show Answer Correct Answer: C) Commensalism. 5. What are factors that affect carrying capacity? A) Biotic only. B) Biotic and abiotic. C) Depends on the ecosystem. D) Abiotic only. Show Answer Correct Answer: B) Biotic and abiotic. 6. Do plants support the carbon cycle? A) Yes. B) No. Show Answer Correct Answer: A) Yes. 7. Soil, dirt, rocks, precipitation, air, water, sunlight are examples of the non-living parts of the environment known as what? A) Terrestrial. B) Aquatic. C) Biotic. D) Abiotic. Show Answer Correct Answer: D) Abiotic. 8. Scavengers consume the soft tissues of ..... animals. A) Dead. B) Energy. Show Answer Correct Answer: A) Dead. 9. The number one threat to biodiversity A) Fragmentation. B) Habitat destruction. C) Pollution. D) Limiting factors. Show Answer Correct Answer: B) Habitat destruction. 10. Animals that feed on other animals that they have NOT killed A) Scavengers. B) Producers. C) Predators. D) Herbivores. Show Answer Correct Answer: A) Scavengers. 11. Linear feeding relationships are A) Predation. B) Food chain. C) Food net. D) Food web. Show Answer Correct Answer: B) Food chain. 12. Aquatic ecosystem that has a thin layer of water covering soil that is wet most of the time is called ..... A) Wetland. B) Estuary. C) Lake. D) Puddle. Show Answer Correct Answer: A) Wetland. 13. Transpiration is A) What happens to you when you exercise a lot. B) The process of converting gas into ammonia. C) Converting organisms into gas. D) The loss of water from a plant through its leaves. Show Answer Correct Answer: D) The loss of water from a plant through its leaves. 14. Primary source of ecosystem energy A) Wind energy. B) Thermal energy. C) Fuel energy. D) Solar energy. Show Answer Correct Answer: D) Solar energy. 15. What are the key features of the Tundra? A) Many evergreen trees, short moist summers, long snowy winters. B) Treeless, permafrost, cold dark winters. C) Ong cool summers, short dark winters, migrating animals. D) Cold winter, thin acidic soil, evergreen trees. Show Answer Correct Answer: B) Treeless, permafrost, cold dark winters. 16. What type of factor has an increasing impact as the population size increases? A) Density-dependent. B) Cohort effect. C) Survivorship factor. D) Density-independent. Show Answer Correct Answer: A) Density-dependent. 17. ..... can be hammered i different shapes A) Nonmetals. B) Metalloids. C) Metal. D) None of above. Show Answer Correct Answer: C) Metal. 18. Which symbols best describe parasitism? A) +, +. B) +, 0. C) +, -. D) -, 0. Show Answer Correct Answer: C) +, -. 19. An organism that eat's plants and meat. A) Carnivore. B) Omnivore. C) Herbivore. D) Detrivorous. Show Answer Correct Answer: B) Omnivore. 20. The pattern of spacing among individuals within the geographic boundaries is called A) Pursuing. B) Separation. C) Boundaries. D) Dispersion. Show Answer Correct Answer: D) Dispersion. 21. Mushrooms often grow around dead plants such as decomposing trees. They break down these dead organisms and put matter back into the ground for other plants to use. What type of consumer are mushrooms? A) Decoposer. B) Omnivore. C) Carnivore. D) Herbivore. Show Answer Correct Answer: A) Decoposer. 22. In an energy pyramid, energy ..... as you move up the pyramid. A) Increases. B) Decreases. C) Stays the same. D) Changes up and down. Show Answer Correct Answer: B) Decreases. 23. Predation is the relationship in which members of one species consume members of another species. A) False. B) True. Show Answer Correct Answer: B) True. 24. What level on an energy pyramid has organisms having the LEAST energy? A) Top level. B) Bottom level. C) Middle level. D) None of above. Show Answer Correct Answer: A) Top level. 25. An organism that obtains energy by feeding on other organisms A) Niche. B) Decomposer. C) Consumer. D) Autotroph. Show Answer Correct Answer: C) Consumer. 26. Relationships between living things Living like a prey is A) Tiger hunts deer. B) Parasites on big trees. C) Bee and flower. D) Ticks that cling to dogs. Show Answer Correct Answer: A) Tiger hunts deer. 27. How is a monarch butterfly similar to the milkweed plant? A) Both organisms hatch from eggs. B) Both organisms need water to survive. C) Both organisms use sunlight to make food. D) Both organisms breathe oxygen from the air. Show Answer Correct Answer: B) Both organisms need water to survive. 28. A species' specific use of the biotic and abiotic factors in an environment is collectively called the species A) Community. B) Ecological niche. C) Habitat. D) Trophic level. Show Answer Correct Answer: B) Ecological niche. 29. Limiting factor is A) When you can't do anything because you didn't do your chores. B) When you can't eat anymore because you ran out of food. C) A factor that causes the growth of a populaton to decrease. D) When your limited to what you can do because you're sick. Show Answer Correct Answer: C) A factor that causes the growth of a populaton to decrease. 30. How is Nitrogen removed from the air and put into compound that living things can use? A) Photosynthesis. B) Plants. C) Nitrogen fixing bacteria. D) Chemosynthesis. Show Answer Correct Answer: C) Nitrogen fixing bacteria. 31. One way humans could have a positive impact on their local environment is to ..... A) Decrease reforestation efforts. B) Increase the use of pesticides. C) Use renewable resources. D) Generate increased waste products from technological advances. Show Answer Correct Answer: C) Use renewable resources. 32. Geothermal energy is A) Renewable. B) Nonrenewable. Show Answer Correct Answer: A) Renewable. 33. The things organisms do to survive; bird calls and migration. A) Grasslands. B) Structural adaptations. C) Behavioral adaptations. D) Behavior. Show Answer Correct Answer: C) Behavioral adaptations. 34. An organism's particular role in an ecosystem, or how it makes its living is called a A) Biosphere. B) Niche. C) Habitat. D) Population. Show Answer Correct Answer: B) Niche. 35. Nonnative zebra mussels were first found in a lake near Detroit in 1988. By 1989, it had colonized all Great Lakes waterways. Which scenario is most likely true regarding the introduction of this species? A) Native fish naturally ate zebra mussels. B) The higher biodiversity lead to healthier lakes. C) Native mussels were outcompeted by Nonnative mussels for food and other resources. D) Native mussel populations were growing rapidly. Show Answer Correct Answer: C) Native mussels were outcompeted by Nonnative mussels for food and other resources. 36. The five levels of organization in the environment, from smallest to largest A) Organism population, community, ecosystem, biosphere. B) Organism, population, biotic element, abiotic, elements, community. C) Organisms, population, biosphere, abiotic elements, ecology. D) Organism, population, biosphere, ecosystem, community. Show Answer Correct Answer: A) Organism population, community, ecosystem, biosphere. 37. This is any close relationship between any two different species in an ecosystem A) Mutualism. B) Symbiosis. C) Commensalism. D) Parasitism. Show Answer Correct Answer: B) Symbiosis. 38. Levels in ecological (energy) pyramids are called A) Food chains. B) Food levels. C) Food webs. D) Trophic levels. Show Answer Correct Answer: D) Trophic levels. 39. A tick lives off the blood of a dog and can make it sick. A) Mutualism. B) Commensalism. C) Parasitism. D) None of above. Show Answer Correct Answer: C) Parasitism. 40. What type of factors represent the living organisms in an environment? A) Natural Disasters. B) Abiotic. C) Viruses. D) Biotic. Show Answer Correct Answer: D) Biotic. 41. DNA is located in the nucleus of A) Prokaryotes. B) Eukaryotes. Show Answer Correct Answer: B) Eukaryotes. 42. Why is there a limited amount of energy that can be passed on to the next feeding level? A) There is never enough sunlight available. B) Some ecosystems have limited resources. C) Organisms use some of the energy they get from eating. D) All the energy is available to be passed on. Show Answer Correct Answer: C) Organisms use some of the energy they get from eating. 43. Which of the following is contributing to an INCREASE in carbon dioxide in the atmosphere? A) Deforestation. B) Photosynthesis. C) Oceans. D) All of the above. E) The loss of animal species. Show Answer Correct Answer: A) Deforestation. 44. Which biome, because of its climate and amount of rainfall, has the largest number of species of plants and animals? A) Tundra. B) Desert. C) Rainforest. D) Pineforest. Show Answer Correct Answer: C) Rainforest. 45. What is an organism that gets its food through eating other sources? A) Decomposers. B) Producer. C) Autotroph. D) Consumer. Show Answer Correct Answer: D) Consumer. 46. The greatest numbers of relationships between the organisms in an ecosystem is best shown in A) An energy pyramid. B) A food web. C) A food chain. D) An ecological succession diagram. Show Answer Correct Answer: B) A food web. 47. As ecological succession progresses, a pioneer community gradually changes into a climax community. What typically happens during this process? A) The organisms in the area increase in their size. B) The number of species increases. C) The organisms in an area can no longer find food. D) The number of species decreases. E) The organisms in an area decrease in size. Show Answer Correct Answer: B) The number of species increases. 48. What is another name for evaporation of water through the leaves of plants? A) Percolation. B) Transpiration. C) Precipitation. D) Condensation. Show Answer Correct Answer: B) Transpiration. 49. The way in which the specific environment is exploited by an organisms is an appropriate definition for A) Ecological niche. B) Trophic level. C) Habitat. D) Ecosystem. Show Answer Correct Answer: A) Ecological niche. 50. A ..... is the place that an organism lives-its natural home. A) Habitat. B) Ecology. C) Population. D) Community. Show Answer Correct Answer: A) Habitat. 51. True or False:Biodiversity tends to decrease nearer the equator. A) True. B) False. Show Answer Correct Answer: B) False. 52. Which is the simplest level of organization within the environment? A) Organism. B) Population. C) Community. D) None of above. Show Answer Correct Answer: A) Organism. 53. A type of consumer that eats primary consumers is called a ..... A) Herbivore. B) Prey. C) Secondary Consumer. D) Tertiary Consumer. Show Answer Correct Answer: C) Secondary Consumer. 54. Conservation is the act of conserving, or protecting the environment, plants, and animals. Why is this so important? What are some things you can do to help conserve our environment? A) Turn off water, turn off lights, turn off TV. B) Run the washing machine with 1 shirt. C) Leave the refrigerator door open. D) Leave water on, leave TV on, run dishwasher with 1 plate. Show Answer Correct Answer: A) Turn off water, turn off lights, turn off TV. 55. An heterotroph is another word for a ....., meaning it needs to ..... A) Consumer, go through photosynthesis. B) Producer, make its own food. C) Consumer, eat other organisms. D) Producer, survive without water. Show Answer Correct Answer: C) Consumer, eat other organisms. 56. The 10% rule states that 10% of energy moves from each trophic level to the next.In the pyramid, if the producers level contains 1234 kilocalories, how many kilocalories are transferred to the bird (apex predator)? A) 1.234. B) 1234. C) 123.4. D) 1234. Show Answer Correct Answer: A) 1.234. 57. In the energy pyramid, an organism that eats a producer is called the ..... A) Producer. B) Tertiary consumer. C) Primary consumer. D) Secondary consumer. Show Answer Correct Answer: C) Primary consumer. 58. Autotrophs who capture energy and use it to make organic molecules A) Niche. B) Abiotic factor. C) Biotic factor. D) Producer. Show Answer Correct Answer: D) Producer. 59. The variety of living things in an area or ecosystem A) Biodiversity. B) Community. C) Ecosystem. D) Biome. Show Answer Correct Answer: A) Biodiversity. 60. Wolves hunt in pack for a more successful hunt. A) Niche. B) Habitat. Show Answer Correct Answer: A) Niche. ← 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