This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 40 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 40 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which energy role obtains energy through breaking down dead organisms and waste products and returning the nutrients to the environment? A) Producer. B) Consumer. C) Decoposer. D) Omnivore. Show Answer Correct Answer: C) Decoposer. 2. How can a wildfire be beneficial to an environment A) Causes habitat destruction. B) Allows seed to germinate. C) Destroys homes. D) Can endanger humans and animals. Show Answer Correct Answer: B) Allows seed to germinate. 3. Approximately how much energy is lost in each trophic step of a food chain? A) No energy is lost. B) 90%. C) 50%. D) 75%. Show Answer Correct Answer: B) 90%. 4. Examples of Abiotic things A) Plants, animals fungi. B) Light, water, soil. Show Answer Correct Answer: B) Light, water, soil. 5. An organism that obtains energy from eating meats A) Omnivores. B) Carnivores. C) Herbivores. D) None of above. Show Answer Correct Answer: B) Carnivores. 6. A particular environment and all the living things that are supported by it A) Desert. B) Ecology. C) Ecocsystem. D) Tropical rainforest. Show Answer Correct Answer: C) Ecocsystem. 7. Levels of organization for an ecosystem in order A) Speices-habitat-niche-population-communities-ecosystem-biome. B) Habitat-speices-niche-communities-population-biome-ecosystem. C) Biome-ecosystem-communities-population-niche-habitat-speices. D) Ecosyetem-biome-habitat-speices-communities-niche-population. Show Answer Correct Answer: A) Speices-habitat-niche-population-communities-ecosystem-biome. 8. Captures energy from sunlight and changes it into energy A) Producer. B) Consumer. C) Carnivore. D) Omnivore. Show Answer Correct Answer: A) Producer. 9. What has the highest levels on the pyramid A) Lowest part of the pyramid. B) The top. C) The middle. D) All of the above. Show Answer Correct Answer: A) Lowest part of the pyramid. 10. The mode of these numbers:3, 3, 5, 6 would be: A) 4.25. B) 4.67. C) 3. D) 4. Show Answer Correct Answer: C) 3. 11. Hermit crabs live in shells made and then abandoned by snails A) Competition. B) Predation. C) Mutualism. D) Commensalism. E) Parasitism. Show Answer Correct Answer: D) Commensalism. 12. Round structures on the roots of certain plants A) Lichens. B) Commensals. C) Cataracts. D) Nodules. Show Answer Correct Answer: D) Nodules. 13. What is it called when you have groups of different populations along with their abiotic factors? A) An organism. B) A population. C) A community. D) An ecosystem. Show Answer Correct Answer: D) An ecosystem. 14. A population of baboons has access to plenty of food, shelter, and space to live but has an inadequate supply of water. Which of these BEST defines the water in this case? A) Limiting factor. B) Limiting reagent. C) Darwinian shortfall. D) Biochemical constrain. Show Answer Correct Answer: A) Limiting factor. 15. Many fish die due to a drastic change in water temperature. A) Density-Dependent. B) Density-Independent. Show Answer Correct Answer: B) Density-Independent. 16. Anything that limits an organism's ability to live in a particular environment. A) Pioneer species. B) Limiting factor. C) Climax community. D) None of above. Show Answer Correct Answer: B) Limiting factor. 17. Which of the following is NOT a source of nitrates and phosphates into a river? A) Fertilizers. B) Animal waste. C) Wastewater. D) Burning fossil fuels. Show Answer Correct Answer: D) Burning fossil fuels. 18. Identify the organic compound A) HCl. B) CaCl. C) NaCl. D) Satha 12 watts. Show Answer Correct Answer: D) Satha 12 watts. 19. Sun is the primary source of energy in the environment. A) True. B) False. Show Answer Correct Answer: A) True. 20. Prokaryotes do not have a nucleus. A) True. B) False. Show Answer Correct Answer: A) True. ← 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