This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 175 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 175 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which biome receives between 0 and 25 centimeters of precipitation each year, has a temperature range from-27 to 5 degrees Celsius, has frozen soil, and is home to hares, caribou, and wolves? A) Desert. B) Mountain. C) Savannah. D) Tundra. Show Answer Correct Answer: D) Tundra. 2. When members of a population move into a given area, this is A) Emigration. B) Immigration. C) Defecation. D) Population elevation. Show Answer Correct Answer: B) Immigration. 3. Sun, wind water and geothermal energy are considered ..... energy resources since these resources can never run out. A) Renewable. B) Nonrenewable. C) Inexhaustible. D) Natural. Show Answer Correct Answer: C) Inexhaustible. 4. Group of ecosystems that share similar climates and typical organisms. A) Ecology. B) Ecosystem. C) Biome. D) Habitat. Show Answer Correct Answer: C) Biome. 5. It is estimated that humans will cause more than half of the existing species in the world to go extinct in the next 1, 000 years A) True. B) False. Show Answer Correct Answer: B) False. 6. Which of these is an an example of a decomposer? A) Mushroom. B) Mouse. C) Oak tree. D) Frog. Show Answer Correct Answer: A) Mushroom. 7. About how much energy is LOST when an organism consumes another organism from a different trophic level? A) 10%. B) 90%. C) 50%. D) 25%. Show Answer Correct Answer: B) 90%. 8. Competition is when ..... A) Two animals compete for resources. B) Two animals share resources. C) A group of animals protect each other. D) When one animal benefits while the other suffers. Show Answer Correct Answer: A) Two animals compete for resources. 9. Why are some sharks considered a keystone species? A) Because they are a top predator. B) They scare off smaller fish that may overgraze an area of sea grass. C) They are tertiary consumers. D) They are cartilaginous. Show Answer Correct Answer: B) They scare off smaller fish that may overgraze an area of sea grass. 10. Modern technology has resulted in the production and use of insecticides. Which statement is a false description of insecticides? A) Insecticides can affect food chains. B) Insecticides can cause pollution. C) Insecticides improve yields. D) Insecticides target weeds. Show Answer Correct Answer: D) Insecticides target weeds. 11. Energy flows in A) One direction from consumer to producers. B) One directions from producers to consumers. C) Many different directions. D) None of above. Show Answer Correct Answer: B) One directions from producers to consumers. 12. Which of the following is an example of predation? A) Lion and wildebeast. B) Human and pinworm. C) Humpback whale and barnacle. D) Ant and bull horn. Show Answer Correct Answer: A) Lion and wildebeast. 13. The scientific study of interactions between organisms and their environments A) Biology. B) Ecology. C) Astronomy. D) Geology. Show Answer Correct Answer: B) Ecology. 14. An ecological risk of damming a river could be: A) Preventing fish from reaching spawning grounds. B) Loss of revenue for a canoe rental business. C) Generating electricity to supply power to homes. D) Creation of a lake that is good for sailboat enthusiasts. E) Better habitat for birds such as ducks and pelicans. Show Answer Correct Answer: A) Preventing fish from reaching spawning grounds. 15. Consider the following food chain:Algae > Mayfly > Minnow > TroutIn a polluted ecosystem, which organism would likely have the HIGHEST level of toxic chemicals in its body? A) Algae. B) Mayfly. C) Minnow. D) Trout. Show Answer Correct Answer: D) Trout. 16. Please ..... the light in the classroom A) Turn of. B) Turn off. C) Put on. D) Clean. Show Answer Correct Answer: B) Turn off. 17. A series of events that happens over and over again A) Food chain. B) Respiration. C) Transpiration. D) Cycle. Show Answer Correct Answer: D) Cycle. 18. What is the process by which plants get energy from the sun and convert it into oxygen and food for themselves? A) Photography. B) Photosynthesis. C) Chemosynthesis. D) Photoelectric effect. Show Answer Correct Answer: B) Photosynthesis. 19. An organism that makes its own food is NOT called a heterotroph but an ..... A) Transformer. B) Autotroph. C) Consumer. D) Producer. Show Answer Correct Answer: B) Autotroph. 20. This type of organism breaks down dead organic material. A) Carnivore. B) Omnivore. C) Deritivore. D) Decomposer. Show Answer Correct Answer: D) Decomposer. ← 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