This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 70 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 70 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What conservation technique was used to recovery the population of wolves in 1995? A) Reintroduction. B) Reincarnation. C) Captive Breeding. D) None of above. Show Answer Correct Answer: A) Reintroduction. 2. A model of the feeding relationships between many different consumers and producers in an ecosystem A) Food chain. B) Ecosystem. C) Food web. D) Energy pyramid. Show Answer Correct Answer: C) Food web. 3. True or false:No light penetrates to the bathypelagic, abyssopelagic and hadopelagic zones. A) True. B) False. Show Answer Correct Answer: A) True. 4. What gas does burning things release into the atmosphere? A) Oxygen. B) Carbon dioxide. C) Nitrogen. D) Diethylchlorofloromethane. Show Answer Correct Answer: B) Carbon dioxide. 5. Excessive use, of species that have economic value is a factor increasing the current rate of extinction. A) Overexploitation. B) Habitat Loss. C) Destruction of Habitat. D) Disruption of Habitat. E) Pollution. Show Answer Correct Answer: A) Overexploitation. 6. Organisms must have food because A) Food is a source of energy. B) Food supplies cells with oxygen. C) Organisms never make their own food. D) All of the above. Show Answer Correct Answer: A) Food is a source of energy. 7. A species that has an unusually large impact on its food web or ecosystem A) Capstone Species. B) Predator Species. C) Keystone Species. D) Producer. Show Answer Correct Answer: C) Keystone Species. 8. What type of relationship is described below? A lucky alligator spots a deer drinking water, attacks the deer, kills it, and eats it for food. What type of relationship do the alligator and deer have? A) Predation. B) Mutualism. C) Commensalism. D) Competition. Show Answer Correct Answer: A) Predation. 9. An organism that feeds on dead and decaying matter A) Autotroph. B) Heterotroph. C) Decoposer. D) Scavenger. Show Answer Correct Answer: D) Scavenger. 10. 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. 11. 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. 12. What kind of factor:temperature? A) Density-independent. B) Density-dependent. Show Answer Correct Answer: A) Density-independent. 13. 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. 14. Consumes the soft tissues of dead animals A) Scavenger. B) Omnivore. Show Answer Correct Answer: A) Scavenger. 15. 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. 16. 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. 17. 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. 18. 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. 19. A group of populations A) Organism. B) Population. C) Community. D) Ecosystem. Show Answer Correct Answer: C) Community. 20. 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. ← 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