This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 46 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 46 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Abiotic factors are things such as water, air, and rocks A) True. B) False. Show Answer Correct Answer: A) True. 2. A species whose influence on its community is much larger that its relative biomass is termed a ..... A) Keystone species. B) Primary producer. C) Carnivore. D) Trophic kingdom. Show Answer Correct Answer: A) Keystone species. 3. Which of the following ecological terms refers to only one species? A) Population. B) Community. C) Food chain. D) Producer. Show Answer Correct Answer: A) Population. 4. Which of the following have been changed or altered due to climate change? A) Droughts. B) Flooding. C) Melting of polar ice caps. D) All of the above. Show Answer Correct Answer: D) All of the above. 5. The Earth's atmosphere is made up of about ..... % nitrogen. A) 21. B) 58. C) 64. D) 78. Show Answer Correct Answer: D) 78. 6. Which of the following is an example of flora? A) Cows. B) Tulips. C) Mice. D) Insects. Show Answer Correct Answer: B) Tulips. 7. Which of pair of organisms are examples of parasitic relationships? A) Birds on a water buffalo. B) Tick on a dog. C) Insects living on a dead tree. D) None of above. Show Answer Correct Answer: B) Tick on a dog. 8. One organism benefits and the other is unharmed A) Mutualism. B) Parasitism. C) Commensalism. D) Photosynthesis. Show Answer Correct Answer: C) Commensalism. 9. Which is NOT a producer A) Zebra. B) Lily pad. C) Tree. D) None of above. Show Answer Correct Answer: A) Zebra. 10. The common ecosystems in Panama are A) Tropical islands. B) Tropical dry forests. C) Both. D) None of above. Show Answer Correct Answer: C) Both. 11. The organism that does the hunting and eating in predation is called the: A) Parasite. B) Host. C) Prey. D) Predator. Show Answer Correct Answer: D) Predator. 12. A relationship between two living beings that both benefit from each other and cannot be separated. Which of the following means A) Supportive situation. B) Parasitic condition. C) Dependency. D) Decomposition. Show Answer Correct Answer: C) Dependency. 13. A rabbit eats grass, a snake eats the rabbit, a fox eats the snake, a coyote eats the fox ..... the fox is a ..... consumer A) Primary. B) Tertiary. C) Quaternary. D) None of above. Show Answer Correct Answer: B) Tertiary. 14. This is a special kind of water biome where salt water and freshwater meet. A) Marine. B) Stream. C) Pond. D) Estuary. Show Answer Correct Answer: D) Estuary. 15. What does biotic mean? A) Living. B) Non living. C) Man made. D) None of above. Show Answer Correct Answer: A) Living. 16. Example of Biotic Factors are: A) An oak tree, a tulipan, a whale. B) Mountains, sunlight, soil . Show Answer Correct Answer: A) An oak tree, a tulipan, a whale. 17. The practice of harvesting or hunting to such a degree that remaining individuals may not be able to replenish the population is called ..... A) Biomagnification. B) Overexploitation. C) Edge effects. D) Natural resource. Show Answer Correct Answer: B) Overexploitation. 18. A SERIES of organisms, each of which sequentially extracts materials and energy from the original food substance, are called: A) Power supply. B) Power circuit. C) Circulation of substances. D) Migration. Show Answer Correct Answer: B) Power circuit. 19. Who obtains more energy? A) Top level consumer. B) Producer. C) Secondary consumer. D) Decoposer. Show Answer Correct Answer: B) Producer. 20. ..... appears in big cities when there is no wind. A) Acid rain. B) Yeti. C) Smog. D) Batman. Show Answer Correct Answer: C) Smog. ← PreviousNext →Related QuizzesScience QuizzesEcology Quiz 1Ecology Quiz 2Ecology Quiz 3Ecology Quiz 4Ecology Quiz 5Ecology Quiz 6Ecology Quiz 7Ecology Quiz 8Ecology Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books