This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 245 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 245 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Consumers get their energy by eating food. A) True. B) False. Show Answer Correct Answer: A) True. 2. Why might an organism have more than one arrow coming from them in a food web? A) More than one organism may eat them. B) They eat more than one other organism. C) This organism gets its energy from multiple sources. D) None of above. Show Answer Correct Answer: A) More than one organism may eat them. 3. In what form of symbiosis does one organism benefit, while the other is unaffected? A) Commensalism. B) Parasitism. C) Predation. D) Mutualism. Show Answer Correct Answer: A) Commensalism. 4. Antibiotics do not work on A) Bacteria. B) Viruses. C) Fungi. D) Children. Show Answer Correct Answer: B) Viruses. 5. What is the third level of a food chain? A) Producer. B) Primary consumer. C) Secondary consumer. D) Decoposer. Show Answer Correct Answer: C) Secondary consumer. 6. Bees and a flower. A) Mutualism. B) Commensalism. C) Parasitism. D) None of above. Show Answer Correct Answer: A) Mutualism. 7. A species that has been moved to a new ecosystem and is causing damage to that ecosystem is called a(n) A) Consuming species. B) Introduced species. C) Invasive species. D) Migrating species. Show Answer Correct Answer: C) Invasive species. 8. Introduced species disrupt ecosystems because they are a/an A) Keystone Species. B) Endemic Species. C) Invasive Species. D) Native Species. Show Answer Correct Answer: C) Invasive Species. 9. All of the following are density-independent factors that limit populations EXCEPT A) Hurricane. B) Competition. C) Tornado. D) Pollution. E) Deforestation. Show Answer Correct Answer: B) Competition. 10. Behaviors or physical characteristics that make an organism survive in its environment A) Natural selection. B) Adaptations. C) Niche. D) Traits. Show Answer Correct Answer: B) Adaptations. 11. What do you understand by ecology? A) The environment is scientific and allows us to study. B) It is a science of ecobiosystems. C) It is a science that studies the relationships between living beings and their environments. D) None of the options. Show Answer Correct Answer: C) It is a science that studies the relationships between living beings and their environments. 12. The number of wild horses per square kilometer in a prairie is the horse population's A) Density. B) Dispersion. C) Size. D) Birthrate. Show Answer Correct Answer: A) Density. 13. Which of the following human activities negatively affect the environment?I ReforestationII DeforestationIII Building nature reservesIV Burning fossil fuels A) I and II only. B) I and III only. C) II and IV only. D) III and IV only. Show Answer Correct Answer: C) II and IV only. 14. The greatest biodiversity on earth is found in the ..... biome. A) Taiga. B) Grassland. C) Temperate deciduous forest. D) Tropical rainforest. Show Answer Correct Answer: D) Tropical rainforest. 15. An abiotic factor that limits a population size would be? A) Food. B) Predators. C) Space. D) Disease. Show Answer Correct Answer: C) Space. 16. Which is a PRO of selective breeding? A) It tries to establish and maintain certain stable traits that animals or crops will pass to the next generation. B) By not allowing some animals to bread, their genes could be lost forever in a population. C) Can create animal discomfort. D) None of above. Show Answer Correct Answer: A) It tries to establish and maintain certain stable traits that animals or crops will pass to the next generation. 17. Example of biosphere A) Hydrosphere. B) Lithosphere. C) Atmosphere. D) All above. Show Answer Correct Answer: D) All above. 18. A collection of organisms that make up a community as well as all of the nonliving aspects of the environment. A) Population. B) Community. C) Habitat. D) Ecosystem. Show Answer Correct Answer: D) Ecosystem. 19. How does a bird prepare it body before migrating? A) They get super thin before migrating. B) It flies around as much as it can using all its energy. C) It doubles its weight before migration. D) It sits still on a branch and waits for food. Show Answer Correct Answer: C) It doubles its weight before migration. 20. The process where plants make food A) Photocopy. B) Photosynthesis. C) Photosynthesis. D) Photographer. Show Answer Correct Answer: B) Photosynthesis. ← 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