This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 273 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 273 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A close interaction between tow or more different species is known as A) Symbiosis. B) Commensalism. C) Mutualism. D) Botulism. Show Answer Correct Answer: A) Symbiosis. 2. How did increasing wolves increase bird populations? A) Wolves eat the bird's predators. B) Less deer means more food for birds. Show Answer Correct Answer: B) Less deer means more food for birds. 3. Which term defined:Chemical elements in inorganic forms in the abiotic components of biosphere A) Cycling pool. B) Reservoir pool. Show Answer Correct Answer: B) Reservoir pool. 4. True or False:Extinction lasts forever? (not thinking about new DNA technology) A) True. B) False. Show Answer Correct Answer: A) True. 5. True or false biotic is all living parts in an ecosystem A) True. B) False. Show Answer Correct Answer: A) True. 6. An organism at the second trophic level would be considered a ..... A) Top carnivore. B) Producer. C) Herbivore. D) Carnivore. Show Answer Correct Answer: C) Herbivore. 7. Which of the following resource is renewable? A) Plants and natural gas. B) Petroleum and oil. C) Water and plants. D) None of above. Show Answer Correct Answer: C) Water and plants. 8. Which of these is NOT a way that energy is wasted by animals in a food chain? A) Photosynthesis. B) Respiration. C) Movement. D) Keeping warm. Show Answer Correct Answer: A) Photosynthesis. 9. A group of fish with synchronized direction and speed is called a ..... A) Shoal. B) Aggregation. C) School. D) Pod. Show Answer Correct Answer: C) School. 10. An animal that hunts and eats other animals: A) Producer. B) Plants. C) Predator. D) None of above. Show Answer Correct Answer: C) Predator. 11. All living and nonliving parts of an environment found in a specificlocation. A) Ecosystem. B) Population. C) Habitat. D) Community. Show Answer Correct Answer: A) Ecosystem. 12. Invasive species have a negative impact on ..... A) The ecosystem. B) The economy. C) Both the ecosystem and the economy. D) None of these. Show Answer Correct Answer: C) Both the ecosystem and the economy. 13. In most food webs, bacteria and fungi are labeled as the A) Producers. B) Consumers. C) Scavengers. D) Decomposers. Show Answer Correct Answer: D) Decomposers. 14. When algae levels increase in a body of water, it A) Cuts off light to plants at the bottom. B) Increases light to the plants on the bottom. C) Causes dissolved Oxygen levels increase. D) Causes bacteria populations decrease. Show Answer Correct Answer: A) Cuts off light to plants at the bottom. 15. Anytime there is a close and permanent association between organisms, it is known as ..... A) A Keystone Species. B) Symbiosis. C) Predator. D) Prey. Show Answer Correct Answer: B) Symbiosis. 16. The slight differences in stripe patterns in a zebra population is known as A) Adaptation. B) Variation. Show Answer Correct Answer: B) Variation. 17. The term abiotic means;- A) Not a robot or robotic. B) Living Things. C) Water based environments. D) Non-living things. Show Answer Correct Answer: D) Non-living things. 18. How does Carbon get from animals to plants? A) Through food. B) In the air. C) Through water. D) UPS. Show Answer Correct Answer: B) In the air. 19. When organisms of different species compete for the same resources, it is called A) Interspecific competition. B) Intraspecific competition. Show Answer Correct Answer: A) Interspecific competition. 20. The source of all energy is ..... A) Producers. B) Decomposers. C) Consumers. D) The Sun. Show Answer Correct Answer: D) The Sun. ← 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