This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 52 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 52 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What has caused the ozone to become thin in spots? A) Human polution. B) Extreme weather. C) Flying objects. D) Carbon dioxide. Show Answer Correct Answer: A) Human polution. 2. Which organism breaks down substances at the microscopic level? A) Consumer. B) Detritivore. C) Decoposer. D) Producer. Show Answer Correct Answer: C) Decoposer. 3. Which of the following levels of organization is the most complex? A) Organism. B) Population. C) Community. D) Ecosystem. Show Answer Correct Answer: D) Ecosystem. 4. Why are decomposers important in an ecosystem? A) They make food for other organisms. B) They return nutrients to the soil. C) They eat dead animals. D) They are prey for predators. Show Answer Correct Answer: B) They return nutrients to the soil. 5. What is a symbiotic relationship in which both organisms benefit? A) Mutualism. B) Commensalism. C) Parasitism. D) Competition. Show Answer Correct Answer: A) Mutualism. 6. A ..... is the role an organism has in the community. A) Niche. B) Mutual relationship. C) Competition. D) None of above. Show Answer Correct Answer: A) Niche. 7. All of the populations that interact in an area A) Organism. B) Population. C) Community. D) Ecosystem. E) Biosphere. Show Answer Correct Answer: C) Community. 8. "Everything in nature is connected with each other-nature knows everything" -whose law is it? A) J. Lamarck. B) D. Chardin. C) R. Pierre. D) B.Commoner. E) M.Taris. Show Answer Correct Answer: D) B.Commoner. 9. The best way to represent a large, complex system, such as the nitrogen cycle, would be a A) Written paragraph. B) Bar graph. C) Model. D) Graph. Show Answer Correct Answer: C) Model. 10. Which biome is very hot during the day, cool at night, and has very little rainfall and animal life/vegetation? A) Tundra. B) Grassland. C) Shrubland. D) Desert. Show Answer Correct Answer: D) Desert. 11. Example of a consumer A) Worm. B) Bacteria. C) Mushroom. D) Hawk. Show Answer Correct Answer: D) Hawk. 12. Immigration A) Exiting population. B) Staying in the population. C) Entering population. D) Birth rate decreasing. Show Answer Correct Answer: C) Entering population. 13. What are renewable resources? A) . Resources that are used faster than they form. B) Resources that can replenish themselves over time. C) Resources that formed over millions of years. D) Resources that exist only in rural areas. Show Answer Correct Answer: B) Resources that can replenish themselves over time. 14. The study of the interactions between organisms and their environment is called ..... A) Ecology. B) Organism. C) Ecosystem. D) Science. Show Answer Correct Answer: A) Ecology. 15. How would a sudden increase in parasites, within a population, affect the population's growth? A) The birth rate would increase. B) The growth rate would continue at a steady pace. C) The growth rate would be unaffected. D) The death rate would increase. Show Answer Correct Answer: D) The death rate would increase. 16. A caterpillar that eats the leaves of an Oak tree is an example of a(n): A) Herbivore. B) Carnivore. C) Omnivore. D) None of above. Show Answer Correct Answer: A) Herbivore. 17. Which of the following leads to a decrease in biodiversity? A) Protection of ecosystems. B) Pollution control. C) Selective cutting. D) Introduction of exotic or invasive species. Show Answer Correct Answer: D) Introduction of exotic or invasive species. 18. Ecological Succession is A) Series of gradual changes that occur in a community following a disturbance. B) Succession that occurs in an area in which no trace of a previous community is present. C) Type of succession that occurs in and area that was only partially destroyed by disturbances. D) Relationship in which two species live close together. Show Answer Correct Answer: A) Series of gradual changes that occur in a community following a disturbance. 19. What best describes the climate in the desert? A) Warm. B) Hot. C) Dry. D) Windy. Show Answer Correct Answer: C) Dry. 20. Which process removes water vapour from the atmosphere? A) A Evaporation. B) B Condensation. C) C Nitrogen fixation. D) D Neutralization. Show Answer Correct Answer: B) B Condensation. ← 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