This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 69 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 69 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which term means the number of different species that live in a particular area? A) Ecosystem. B) Biodiversity. C) Invasive Species. D) Food Web. Show Answer Correct Answer: B) Biodiversity. 2. A living thing that makes its own food is called a ..... A) Consumer. B) Producer. C) Carnivore. D) Herbivore. Show Answer Correct Answer: B) Producer. 3. What kind of factor:temperature? A) Density-independent. B) Density-dependent. Show Answer Correct Answer: A) Density-independent. 4. A giraffe has a long neck in order to better reach leaves to eat. This is an example of ..... A) An adaptation. B) Environment. C) Response. D) Stimulus. Show Answer Correct Answer: A) An adaptation. 5. Consumes the soft tissues of dead animals A) Scavenger. B) Omnivore. Show Answer Correct Answer: A) Scavenger. 6. Scientist use models to show relationships between organisms, an example of such a model would be a(n): A) Food web. B) Food chain. C) Energy pyramid. D) All of these. Show Answer Correct Answer: D) All of these. 7. Energy pyramid! What does it mean? A) An ecological pyramid is a graphical representation designed to show the biomass or bioproductivity at each trophic level in a given ecosystem. B) A pyramid in Egypt. C) A brick wall. D) Or an energy pyramid designed to show you the food chain starting off with energy. Show Answer Correct Answer: A) An ecological pyramid is a graphical representation designed to show the biomass or bioproductivity at each trophic level in a given ecosystem. 8. Which sequence correctly represents the action of nitrifying bacteria? A) Ammonium $\rightarrow$ nitrite $\rightarrow$ nitrate. B) Nitrogen $\rightarrow$ nitrate $\rightarrow$ nitrite. C) Nitrate $\rightarrow$ ammonium $\rightarrow$ nitrogen. D) Nitrite $\rightarrow$ nitrate $\rightarrow$ ammonium. Show Answer Correct Answer: A) Ammonium $\rightarrow$ nitrite $\rightarrow$ nitrate. 9. What type of relationship is described below? Mistletoe extracts water and nutrients from the oak tree, causing harm to the oak tree. What type of relationship do mistletoe and the oak tree have? A) Parasitism. B) Mutualism. C) Commensalism. D) Competition. Show Answer Correct Answer: A) Parasitism. 10. A group of populations A) Organism. B) Population. C) Community. D) Ecosystem. Show Answer Correct Answer: C) Community. 11. Which of these best explains why predators need plants, such as grass, in their ecosystem? A) Plants are a large part of their diets. B) Plants provide safety for predators. C) Plants break down the organisms that the predators eat. D) Plants provide food for their animals that the predators eat. Show Answer Correct Answer: D) Plants provide food for their animals that the predators eat. 12. The process where plants use sunlight, water, and carbon dioxide to produce sugar and release oxygen. A) Respiration. B) Photosynthesis. C) Roots. D) Water Cycle. Show Answer Correct Answer: B) Photosynthesis. 13. Ice melts, which puts out more CO2 in the atmosphere, further causing the temperature to rise and cause more ice to melt. This represents a A) Positive feedback loop. B) Negative feedback loop. Show Answer Correct Answer: A) Positive feedback loop. 14. Quantum mechanical model A) Quantum chemistry. B) Laboratory glassware. C) Oxidation-reduction reaction. D) Quantum mechanical model. Show Answer Correct Answer: D) Quantum mechanical model. 15. Panama is a country with a lot of biodiversity because of: A) Panama has a canal. B) Panama has a museum called Biomuseo. C) Panama rose up through volcanic activity. D) None of above. Show Answer Correct Answer: C) Panama rose up through volcanic activity. 16. A tiger is a(n) ....., an organism that gets food by eating other organisms A) Plant. B) Producer. C) Consumer. D) Herbivore. Show Answer Correct Answer: C) Consumer. 17. In addition to producers and consumers, healthy communities must have ....., bacteria and fungi which recycle detritus. A) Autothrops. B) Decomposer. C) Producer. D) Consumer. Show Answer Correct Answer: B) Decomposer. 18. What is formed during primary succession that doesn't need to be formed during secondary succession? A) Pioneer species. B) Soil. C) Climax community. D) Lichens. Show Answer Correct Answer: B) Soil. 19. Is a fern an abiotic or biotic factor? A) Abiotic. B) Biotic. Show Answer Correct Answer: B) Biotic. 20. A dead animal A) Biotic. B) Abiotic. Show Answer Correct Answer: A) Biotic. ← 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