This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 110 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 110 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following does NOT explain how deforestation might increase the risk of flooding? A) The water cycle is disrupted. B) Tree roots bind soil particles together. C) Tree canopy prevents rain beating down on soil. D) Soil nutrients are lost through leaching and run-off water. Show Answer Correct Answer: D) Soil nutrients are lost through leaching and run-off water. 2. All the populations of different species in a particular area A) Ecosystem. B) Community. C) Population. D) Environment. Show Answer Correct Answer: B) Community. 3. In parasitism A) Both species benefit. B) One species is harmed. C) Species fight for something. D) One species is unaffected. Show Answer Correct Answer: B) One species is harmed. 4. If the birthrate is greater than the deathrate, what will happen to the size of the population? (birthrate > deathrate) A) It will increase. B) It will decrease. C) It will stay the same. D) It will take over the world. Show Answer Correct Answer: A) It will increase. 5. Endangered animal species are listed in: A) Blue list. B) Black list. C) Red square. D) Red list. Show Answer Correct Answer: D) Red list. 6. Which of the fallowing has only abiotic factors? A) Sunlight, algae, and temperature. B) Guppy, crab, oxygen. C) Sunlight, soil, and weather. D) Algae, temperature, and dog. Show Answer Correct Answer: C) Sunlight, soil, and weather. 7. DIFFERENT populations living together and interacting in an area A) Population. B) Organism. C) Community. D) Ecosystem. Show Answer Correct Answer: C) Community. 8. The process of changing nitrogen gas to nitrates is called A) Fertilizer. B) Nitrate fixation. C) Nitrogen fixation. D) None of above. Show Answer Correct Answer: C) Nitrogen fixation. 9. Which process releases water vapour to the atmosphere? A) A Transpiration. B) B Condensation. C) C Precipitation. D) D Absorption. Show Answer Correct Answer: A) A Transpiration. 10. A species that is very important because many organisms in the ecosystem depend on it is known as a(n): A) Endangered species. B) Keystone species. C) Invasive species. D) Native species. Show Answer Correct Answer: B) Keystone species. 11. Plants will bend to grow toward the sun even when placed in a windowsill. Which term refers to a plant's response to sunlight? A) Gravitropism. B) Thigmotropism. C) Hydrotropism. D) Phototropism. Show Answer Correct Answer: D) Phototropism. 12. This refers to the VARIETY of life on Earth at all its levels, from genes to ecosystems, and can encompass the evolutionary, ecological, and cultural processes that sustain life. A) Ecology. B) Ecosystem. C) Biome. D) Biodiversity. Show Answer Correct Answer: D) Biodiversity. 13. A species that has a greater impact on the ecosystem than its number would indicate A) Keystone species. B) Core species. C) Impact species. D) Essential species. Show Answer Correct Answer: A) Keystone species. 14. A hawk that ate a snake that ate a mouse that ate grass seed is a ..... A) Primary Consumer. B) Secondary Consumer. C) Tertiary Consumer. D) Quaternary Consumer. Show Answer Correct Answer: C) Tertiary Consumer. 15. A bird building their nest in a tree. A) Mutualism. B) Commensalism. C) Parasitism. D) None of above. Show Answer Correct Answer: B) Commensalism. 16. A living organism that puts materials from dead plants and animals back to the soil is called a ..... ? A) Carnivore. B) Herbivore. C) Decoposer. D) Omnivore. Show Answer Correct Answer: C) Decoposer. 17. Which of the following is not a cause of eutrophication. A) Organic manure. B) Artificial fertilizer. C) Nitrogen. D) Nitrates. Show Answer Correct Answer: C) Nitrogen. 18. Which progression best explains secondary succession? A) Lichens>grass>shrubs>small trees> big trees. B) Mosses>creates soil>grasses>small trees> big trees. C) Volcano destroys ecosystem>grasses>shrubs>small trees>big trees. D) Volcano forms new island> lichens>grasses>shrubs>small trees>big trees. Show Answer Correct Answer: C) Volcano destroys ecosystem>grasses>shrubs>small trees>big trees. 19. Biomes are usually named from: A) The variety of fauna. B) The variety of flora. C) The type of climate. D) The community of organisms. Show Answer Correct Answer: B) The variety of flora. 20. He was one of the most eminent ecologists of the 20th century and was key to the discipline's professionalization. A) Charles Darwin. B) Ernst Haeckel. C) Eugene Odum. D) Arthur George Tansley. Show Answer Correct Answer: D) Arthur George Tansley. ← 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