This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 244 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 244 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. All living and nonliving things in an environment and the many ways they interact are called ..... A) Ecosystem. B) Community. Show Answer Correct Answer: A) Ecosystem. 2. When an organisms' prey decreases, what most likely will happen? A) The number of prey will increase. B) The prey gets sick. C) The number of predators will also decrease. D) The number of predators will increase. Show Answer Correct Answer: C) The number of predators will also decrease. 3. Roots absorb A) Ill. B) H2o. C) O2. D) Light. Show Answer Correct Answer: B) H2o. 4. Which of the following is a predator and prey relationship? A) Cow and grass. B) Vulture and a dead lion. C) Tick and a deer. D) Spider and a fly. Show Answer Correct Answer: D) Spider and a fly. 5. Which of the following is NOT a density-dependent limiting factor? A) Flood. B) Disease. C) Predation. D) Competition. Show Answer Correct Answer: A) Flood. 6. Which model shows the number of organisms at each trophic level in an ecosystem? A) Biomass pyramid. B) Food web. C) Pyramid of numbers. D) Food chain. Show Answer Correct Answer: C) Pyramid of numbers. 7. A group of the same species living together in one area is a what? A) Ecosystem. B) Biome. C) Community. D) Population. Show Answer Correct Answer: D) Population. 8. Which of the following would receive the LEAST amount of transferred solar energy that was originally absorbed by a producer? A) Primary Consumer. B) Secondary Consumer. C) Plant. D) Herbivore. Show Answer Correct Answer: B) Secondary Consumer. 9. What connects many food chains? A) Non-renewable resouce. B) Food web. C) Primary consumer. D) Renewable resource. Show Answer Correct Answer: B) Food web. 10. Four students in Ms. Thode's class makes the following observations. Choose which student is correct? A) Thomas says that all microorganisms are found in the ocean. B) Ryleigh says that all microorganisms are harmful. C) Kaila says that some microorganims are helpful and some are harmful. D) Tyler says it's impossible to become sick from bacteria. Show Answer Correct Answer: C) Kaila says that some microorganims are helpful and some are harmful. 11. True or false:a niche and a habitat are the same thing. A) True. B) False. Show Answer Correct Answer: B) False. 12. What is the main source of ENERGY for the PLANET? A) The plants. B) The universe. C) The rain. D) The sun. Show Answer Correct Answer: D) The sun. 13. Earthworms break down dead organisms and recycle nutrients into the soil. Earthworms are ..... A) Producers. B) Consumers. C) Decomposers. D) None of above. Show Answer Correct Answer: C) Decomposers. 14. Food, water, sunlight, shelter, and space are resources that are ..... A) Limiting factors. B) Wet. C) Messy. D) Found in rocks. Show Answer Correct Answer: A) Limiting factors. 15. If scientists are studying the 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) Organism. B) Population. C) Community. D) Ecosystem. Show Answer Correct Answer: C) Community. 16. A population that grows until it reaches its carrying capacity usually has the shape of an ..... A) I. B) J. C) S. D) M. Show Answer Correct Answer: C) S. 17. The level of biodiversity that involves a variety of habitats is ..... diversity. A) Ecosystem. B) Population. C) Genetic. D) Species. Show Answer Correct Answer: A) Ecosystem. 18. What kind of organism helps with nitrogen fixation? A) Bacteria. B) Consumers. C) Producers. D) Herbivores. Show Answer Correct Answer: A) Bacteria. 19. In a food web and a food chain, you show arrows to demonstrate how the ..... transfers from one organism to the other. A) Food. B) Animals. C) Energy. D) Producers. Show Answer Correct Answer: C) Energy. 20. What is the main difference between primary and secondary ecological succession? A) Primary begins WITHOUT soil; Secondary begins WITH soil. B) Primary is the first state and secondary is the second stage. C) Primary builds plant community; secondary builds animal community. D) Primary begins WITH soil; Secondary begins WITHOUT soil. Show Answer Correct Answer: A) Primary begins WITHOUT soil; Secondary begins WITH soil. ← PreviousNext →Related QuizzesEcology Quiz 1Ecology Quiz 2Ecology Quiz 3Ecology Quiz 4Ecology Quiz 5Ecology Quiz 6Ecology Quiz 7Ecology Quiz 8Ecology Quiz 9Ecology Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books