This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 120 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 120 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the process in which plants use sunlight to create energy? A) Photography. B) Pennsylvania. C) Chlorophyll. D) Photosynthesis. Show Answer Correct Answer: D) Photosynthesis. 2. Which statement best describes a biogeochemical cycle? A) A cycle that continuously cycles chemical elements and water that are needed by organisms through an ecosystem. B) A cycle that recycles chemical elements and water. Show Answer Correct Answer: A) A cycle that continuously cycles chemical elements and water that are needed by organisms through an ecosystem. 3. A dead leaf is an/a ..... A) Abiotic factor. B) Biotic factor. Show Answer Correct Answer: B) Biotic factor. 4. A network of many food chains A) Food cycle. B) Food web. C) Tertiary web. D) None of above. Show Answer Correct Answer: B) Food web. 5. 1st law of thermodynamics: A) Nothing is free. B) Law of conservation of energy. C) Everything is connected with everything. D) Nature knows everything. E) A concentrated form of energy is distributed to other forms. Show Answer Correct Answer: B) Law of conservation of energy. 6. Bacteria converts nitrates in the soil back into atmospheric nitrogen gas by which process? A) Nitrification. B) Denitrification. C) Ammonification. D) Nitrogren Fixation. Show Answer Correct Answer: B) Denitrification. 7. Hookworms enter the human body by burrowing into the skin of the feet. Once in the skin they enter the bloodstream and travel to the small intestine where they attach to the walls and begin to drink the person's blood and weaken the victim. A) Parasitism. B) Mutualism. C) Commensalism. D) None of above. Show Answer Correct Answer: A) Parasitism. 8. For any natural ecosystem, which of the following statements applies to the energy pyramid, the biomass pyramid, and the numbers pyramid? A) Consumers are at the bottom of the energy pyramid, only. B) Producers are at the bottom level of all three pyramids. C) Producers are at the bottom of the energy and biomass pyramids, only. D) Consumers form the bottom levels, while producers are at the top. Show Answer Correct Answer: B) Producers are at the bottom level of all three pyramids. 9. What is the average amount of energy transferred from one trophic level to the next? A) 90%. B) 10%. C) 20%. D) 50%. Show Answer Correct Answer: B) 10%. 10. What is one way that carbon enters the atmosphere? A) Sunlight. B) Factory emissions. C) Ocean uptake. D) Rain. Show Answer Correct Answer: B) Factory emissions. 11. Demography is the science that studies A) Population using vital statistics such as births, deaths, ages . B) How things change overnight in the news. C) How people react to their climate zones. D) When people want to leave the country. Show Answer Correct Answer: A) Population using vital statistics such as births, deaths, ages . 12. Which is an example of mutualism? A) Venus fly traps and flies. B) Bees and flowers. C) Tapeworms and humans. D) Sea anemone and clownfish. Show Answer Correct Answer: B) Bees and flowers. 13. What color is the container into which we throw metal waste? A) Red. B) Black. C) Green. D) Yellow. Show Answer Correct Answer: B) Black. 14. A group of hyenas that live together in the same area are considered a ..... A) Niche. B) Community. C) Ecosystem. D) Population. Show Answer Correct Answer: D) Population. 15. All of the populations that live in an area. A) House. B) Community. C) Population. D) Group. Show Answer Correct Answer: B) Community. 16. Ecology comes from two Greek roots:What are they? A) House + habitat. B) Logos + home. C) House + Reason. D) Eco + logy. Show Answer Correct Answer: C) House + Reason. 17. To be concerned about the state of something/something A) To care about. B) To be aware of. C) To be concerned of. D) To be anxious about. Show Answer Correct Answer: C) To be concerned of. 18. Which of the following describes #3? A) An ecosystem is the interaction between biotic and biotic factors. B) A community is a group of different populations in the same area. C) An organism is one living thing. D) A population is a group of the same organisms. Show Answer Correct Answer: C) An organism is one living thing. 19. What do plants produce when they carry out photosynthesis? A) Sugar. B) Carbon dioxide. C) Water. D) All of the above. Show Answer Correct Answer: A) Sugar. 20. Easily identified as an area where trees lose their leaves every fall. A) Biome. B) Tundra. C) Deciduous forest. D) Disney world. Show Answer Correct Answer: C) Deciduous forest. ← 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