This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Earth > Ecology – Quiz 63 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 63 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Population includes A) All the living things in an area. B) All the nonliving things in an area. C) All the organisms of the same species in an area. D) All the abiotic and biotic factors. Show Answer Correct Answer: C) All the organisms of the same species in an area. 2. On what continent are these savanna grasslands? A) South America. B) Asia. C) Africa. D) North America. Show Answer Correct Answer: C) Africa. 3. Nitrogen-fixing bacteria can be found A) In the fruits of most plants. B) On the leaves of legume plants. C) In the roots of legume plants. D) In the stems of legume plants. Show Answer Correct Answer: C) In the roots of legume plants. 4. As energy flows through an ecosystem, most energy is lost as heat. So, as energy moves from one level to the next it ..... A) Decreases by 90%. B) Decreases by 10%. C) Increases by 90%. D) Increases by 10%. Show Answer Correct Answer: A) Decreases by 90%. 5. ..... is the process in which water vapor changes to tiny droplets of liquid water. A) Transpiration. B) Condensation. Show Answer Correct Answer: B) Condensation. 6. Which would be an abiotic factor for a tree in the forest? A) A caterpillar eating its leaves. B) A bird nesting in its branches فرع شجرة. C) Wind blowing through its branches فرع شجرة. D) Fungus growing on its roots جذور. Show Answer Correct Answer: C) Wind blowing through its branches فرع شجرة. 7. Which is not something that can happen to animals living together in the same habitat A) Competition. B) Death (lack of resources, predators, etc.). C) Flood, other weather disaster. D) They all become superheroes and fight crime together. Show Answer Correct Answer: D) They all become superheroes and fight crime together. 8. What do the arrows represent on the food chain A) The postion of the chain. B) The interconnecting flow between organisms. C) Just pointy things. D) Showing where you go. Show Answer Correct Answer: B) The interconnecting flow between organisms. 9. An organism that hunts its food A) Gather. B) Predator. C) Prey. D) Hunter. Show Answer Correct Answer: B) Predator. 10. Which is NOT one of the reasons fish exhibit schooling behavior? A) Camouflage. B) Hydrodynamic efficiency. C) Easier to find food. D) Easier to find a mate. Show Answer Correct Answer: A) Camouflage. 11. These eat meat and producers A) Herbivore. B) Omnivore. C) Carnivore. D) None of above. Show Answer Correct Answer: B) Omnivore. 12. Organisms who eat other organisms A) Autotroph. B) Heterotroph. C) Producers. D) All of the above. Show Answer Correct Answer: B) Heterotroph. 13. What do plants need for the photosynthesis process? A) A camera and tripod. B) Light, carbon dioxide, and water. C) Roots, flowers, and bees. D) Soil, air, and oxygen. Show Answer Correct Answer: B) Light, carbon dioxide, and water. 14. All of the parts of Earth that support life. A) Family. B) Universe. C) Lucky. D) Biosphere. Show Answer Correct Answer: D) Biosphere. 15. Eats dead or or decaying animal carcasses A) Omnivore. B) Scavenger. C) Herbivore. D) Carnivore. Show Answer Correct Answer: B) Scavenger. 16. Think back to the "Oh Deer!" experiement you ran outside, the Carrying Capacity most generally depended on what factors? A) The amount of resources available. B) The presence of predators. C) The amount of sunlight and carbon available. D) The chances of catastrophic events or disturbances in the area. Show Answer Correct Answer: A) The amount of resources available. 17. The breaking of habitats into smaller pieces is called ..... A) Habitat fragmentation. B) Habitat corruption. C) Habitat pollution. D) Habitat division. Show Answer Correct Answer: A) Habitat fragmentation. 18. The path energy takes from producers to consumers to decomposers. A) Food Web. B) Food Chain. C) Ecosystem. D) None of above. Show Answer Correct Answer: B) Food Chain. 19. Different populations living in the same area. A) Individuals. B) Biosphere. C) Community. D) Ecosystem. Show Answer Correct Answer: C) Community. 20. A connection of food chains with many food energy paths in an ecosystem is a ..... A) Ecosystem. B) Food web. C) Environment. D) None of above. Show Answer Correct Answer: B) Food web. 21. Two animals, where both animals benefit. A) Mutualism. B) Commensalism. C) Parasitism. D) None of above. Show Answer Correct Answer: A) Mutualism. 22. How is the carbon cycle similar to the water cycle? A) Both involve liquid substances falling to the Earth from the atmosphere?. B) Neither process works at low temperature. C) Both involve the transfer of substances between animals, plants, and the Earth. D) Both involve the transfer of substances between the earth and outer space. Show Answer Correct Answer: C) Both involve the transfer of substances between animals, plants, and the Earth. 23. The organism that is eaten in predation is called the: A) Prey. B) Parasite. C) Host. D) Predator. Show Answer Correct Answer: A) Prey. 24. Which of the following is a biotic factor in an ocean ecosystem? A) The salt content of the water. B) The oxygen in the water. C) The temperature of the water. D) The fish in the water. Show Answer Correct Answer: D) The fish in the water. 25. What makes a Food Web different from a Food Chain A) It shows trophic levels. B) It identifies Keystone Species. C) It shows interwoven feeding chains. D) It shows energy flow. Show Answer Correct Answer: C) It shows interwoven feeding chains. 26. What type of disturbance can be beneficial to ecosystems and communities? A) Flood. B) Volcanic Eruption. C) Fire. D) Invasive Species. Show Answer Correct Answer: C) Fire. 27. What is the name of an animal that is hunted and eaten by other animals? A) Producer. B) Prey. C) Predator. D) Decoposer. Show Answer Correct Answer: B) Prey. 28. Forms of precipitation are- A) Only sleet and snow. B) Rain, sleet, hail, and snow. C) Only dew and rain. D) Only snow and rain. Show Answer Correct Answer: B) Rain, sleet, hail, and snow. 29. What are large geographical areas that have similar climates and life no matter their location? A) Communities. B) Biosphere. C) Biomes. D) Ecosystem. Show Answer Correct Answer: C) Biomes. 30. The environment is ..... A) The surroundings or conditions in which an animal or plant lives. B) The living parts of an ecosystem. C) The biotic factors in an ecosystem. D) A group of plants or animals. Show Answer Correct Answer: A) The surroundings or conditions in which an animal or plant lives. 31. Two organisms that live together and BOTH benefit is referred to as ..... A) Mutualism. B) Parasitism. C) Photosynthesis. D) Predation. Show Answer Correct Answer: A) Mutualism. 32. Mitosis and meiosis are processes by which animal and plant cells divide. Which statement best describes a difference between mitosis and meiosis? A) Meiosis is a multi-step process. B) Mitosis occurs only in eukaryotic cells. C) Meiosis is used in the repair of an organism. D) Mitosis produces genetically identical daughter cells. Show Answer Correct Answer: D) Mitosis produces genetically identical daughter cells. 33. If scientists are studying egrets, herons, marsh crabs and spartina grass, but not the water or the rocks in the salt marsh, what level of ecological organization would they be studying? A) Ecosystem. B) Population. C) Community. D) Organism. Show Answer Correct Answer: C) Community. 34. Marine ecosystem that connects a river with the ocean A) Mangrove swamp. B) Salt marsh. C) Coral reef. D) Estuary. Show Answer Correct Answer: D) Estuary. 35. Anywhere on earth that supports life A) Biosphere. B) Populations. C) Community. D) None of above. Show Answer Correct Answer: A) Biosphere. 36. As energy moves up the pyramid, each level has ..... energy available than the level below A) The majority. B) Less. C) More. D) Moderate. Show Answer Correct Answer: B) Less. 37. Predator to prey is A) A producer. B) A trophic level. C) A feeding relationship. D) None of above. Show Answer Correct Answer: C) A feeding relationship. 38. What is the primary source of energy in a food chain? A) Light energy from the sun. B) Meat from animals. C) Plants and animals. D) None of above. Show Answer Correct Answer: A) Light energy from the sun. 39. How is a community different from a population? A) Communities have biotic and abiotic factors. B) Communities have one species living together. C) Communities have many different species living together. D) Community begins with one individual. Show Answer Correct Answer: C) Communities have many different species living together. 40. What effect did reintroducing wolves to Yellowstone park have? A) Wolves attacked people in the park. B) Diversity decreased. C) Wolves destroyed the habitat. D) Diversity increased. Show Answer Correct Answer: D) Diversity increased. 41. Why must ALL organisms have food? A) Because I said so. B) Food is a source of energy. C) Organisms never make their own food. D) Food supplies cells with oxygen. Show Answer Correct Answer: B) Food is a source of energy. 42. In this food web, the lion plays the role of ..... A) Producer. B) Secondary Consumer. C) Prey. D) Apex predator. Show Answer Correct Answer: D) Apex predator. 43. How does energy flow in a food chain? A) From the sun to the consumer. B) From the highest trophic level to the lowest. C) From the consumer to the producer. D) From the lowest trophic level to the highest. Show Answer Correct Answer: D) From the lowest trophic level to the highest. 44. Any part of the Earth where life can exist is known as ..... A) Community. B) Atmosphere. C) Biosphere. D) Ecosystem. Show Answer Correct Answer: C) Biosphere. 45. In one year, 35 giraffes are born to a population. What does this number represent? A) Growth rate. B) Immigration. C) Birth rate. D) Emigration. Show Answer Correct Answer: C) Birth rate. 46. The physical environment makes the ..... for many different kinds of organisms. A) Environment. B) Habitat. C) Tree. D) Pond. Show Answer Correct Answer: B) Habitat. 47. What is labeled as 6? A) Ecosystem. B) Community. C) Biosphere. D) Biome. Show Answer Correct Answer: C) Biosphere. 48. A model that shows a sequence of feeding relationships A) Food web. B) Producer. C) Consumer. D) Food chain. Show Answer Correct Answer: D) Food chain. 49. Individual ecosystems grouped together according to the climate, the predominant vegetation, and characterized by adaptations of organisms to that particular environment. A) Biome. B) Map. C) Earth. D) None of above. Show Answer Correct Answer: A) Biome. 50. What happens to a prairie if it is overgrazed (too many cattle in a given space) by cattle? A) The soil becomes muddy. B) The soil turns to clay. C) The soil will become dry and sandy. D) There will be no effect. Show Answer Correct Answer: C) The soil will become dry and sandy. 51. What kingdom's organisms often live in super harsh environments? A) Archea. B) Plantae. C) The animal. D) Protists. Show Answer Correct Answer: A) Archea. 52. What is an example of a limiting factor? A) Food, water and space. B) Food, water and sunlight. Show Answer Correct Answer: A) Food, water and space. 53. Organisms that break down wastes and dead organisms and return the nutrients to the soil A) Producer. B) Omnivore. C) Decoposer. D) Consumer. Show Answer Correct Answer: C) Decoposer. 54. Eat plants and animals A) Prey. B) Omnivores. C) Herbivores. D) Predator. Show Answer Correct Answer: B) Omnivores. 55. ..... occurs when more than one individual or population tries to use the same limited resource. A) Niche. B) Availability. C) Competition. D) Predator-prey. Show Answer Correct Answer: C) Competition. 56. How plants get the nitrogen they need A) From broken down rocks. B) From the soil or water in which they live. C) From the Sun. D) From the air. Show Answer Correct Answer: B) From the soil or water in which they live. 57. Which of the following is an example of a prey organism's adaptation? A) A porcupine's needles. B) All of these are prey adaptations. C) A frog's bright colors. D) A plant's poisonous chemicals. Show Answer Correct Answer: B) All of these are prey adaptations. 58. Which of the following would alter the carrying capacity of an ecosystem for a particular species? A) An increase in emigration of individuals of the species to a new habitat. B) An increase in the birth rate of that species. C) A decrease in water availability for the species due to a drought. D) A decrease in the death rate for members of the species. Show Answer Correct Answer: C) A decrease in water availability for the species due to a drought. 59. An organism that cannot adapt to changes in the environment will most likely- A) Store more food. B) Die. C) Change its traits to survive. D) Produce more offspring. Show Answer Correct Answer: B) Die. 60. The deep ocean store carbon for thousands of years or more. A) False. B) True. Show Answer Correct Answer: B) True. ← 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