This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 45 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 45 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which level of organization is made up of several organisms of the same species A) Organism. B) Ecosystem. C) Community. D) Population. Show Answer Correct Answer: D) Population. 2. Refers to the temperature and amount of rainfall in a particular environment. A) Climate. B) Soil profile. C) Biome. D) None of above. Show Answer Correct Answer: A) Climate. 3. How is acid rain formed? A) Carbon monoxide and carbon dioxide mix with water in the ocean. B) Carbon dioxide and oxygen mix with water in the air. C) Sulfur dioxide and carbon monoxide mix with lake water. D) Sulfur dioxide and nitrogen oxide mix with water in the air. Show Answer Correct Answer: D) Sulfur dioxide and nitrogen oxide mix with water in the air. 4. Which process is part of the hydrologic cycle? A) Nitrification. B) Transpiration. C) Decomposition. D) Sedimentation. Show Answer Correct Answer: B) Transpiration. 5. The carrying capacity for a population is ..... A) Dependent only on predators. B) Same for each organism. C) Not effected by limiting factors. D) The number of people, other living organisms, or crops that a region can support without environmental degradation. Show Answer Correct Answer: D) The number of people, other living organisms, or crops that a region can support without environmental degradation. 6. Detritivores do this A) Eat prey. B) Create abiotic factors. C) Transfer heat energy to plants. D) Decompose dead organisms. Show Answer Correct Answer: D) Decompose dead organisms. 7. What are vulnerable or candidate species? A) Not in immediate danger but could be soon. B) Species that are no longer endangered. C) Species that have already become extinct with no hope of coming back. D) None of the above. Show Answer Correct Answer: A) Not in immediate danger but could be soon. 8. These organisms break down decaying biotic wastes and then return the materials to the ecosystem. A) Decomposers. B) Scavengers. C) Carnivores. D) Producers. Show Answer Correct Answer: A) Decomposers. 9. You should throw your rubbish in a ..... A) Club. B) Bin. C) Sea. D) Bottle. Show Answer Correct Answer: B) Bin. 10. Organism that breaks down dead plants & animals and releases nitrogen back into atmosphere A) Bacteria. B) Plants. C) Animals. D) Producers. Show Answer Correct Answer: A) Bacteria. 11. This biome has almost no biodiversity is arid and has very poor soil quality A) Desert. B) Tundra. C) Taiga. D) Marine. Show Answer Correct Answer: A) Desert. 12. Carnivores eat: A) Plants. B) Animals. C) Both plants and animals. D) Dead organisms. Show Answer Correct Answer: B) Animals. 13. Which of the following best describes an organism's environment? A) Made up of its geography and climate. B) Made up of its physical surroundings. C) Made up of the plants and animals it is surrounded by. D) Made up of the abiotic and biotic components of its surroundings. Show Answer Correct Answer: D) Made up of the abiotic and biotic components of its surroundings. 14. Which of the following is an example of a secondary consumer? A) Deer eating grass. B) Lion eating a zebra. C) Lion eating a cheetah. D) A vulture eating a coyote. Show Answer Correct Answer: B) Lion eating a zebra. 15. Which of the following is a current environmental issue? A) Poaching. B) Oil Spills. C) Great Pacific Garbage Patch. D) All of the above. Show Answer Correct Answer: D) All of the above. 16. Living factors in an environment are ..... A) Biotic. B) Abiotic. Show Answer Correct Answer: A) Biotic. 17. Large geographic areas with similar climates and ecosystems A) Biomes. B) Biosphere. C) Community. D) Population. Show Answer Correct Answer: A) Biomes. 18. The many overlapping food chains in an ecosystem make up a(n) A) Food web. B) Food chain. C) Energy pyramid. D) Feeding level. Show Answer Correct Answer: A) Food web. 19. Which phrase best describes the focus of ecology? A) Individual organisms. B) Individual cells. C) Interactions among organisms. D) Interactions among cells. Show Answer Correct Answer: C) Interactions among organisms. 20. ..... happens when fertilizers, animal waste, sewage or other substances rich in nitrogen and phosphorus are lost into waterways causing excessive algae growth. A) Eutrophication. B) Introduced species. C) Biological Augmentation. D) Nonrenewable Resource. Show Answer Correct Answer: A) Eutrophication. ← 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