This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 14 Ecosystem – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 14 Ecosystem Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following BEST describes the flow of energy through a food chain? A) Energy flows between primary producers and consumers, in either direction. B) Energy flows from consumers to primary producers, in one direction only. C) Energy flows from primary producers to consumers in one direction only. D) Energy flows between primary producers and consumers, in an endless cycle. Show Answer Correct Answer: C) Energy flows from primary producers to consumers in one direction only. 2. Biotic Elements need ..... many things to survive. A) 2. B) 11. C) 2. D) 5. Show Answer Correct Answer: D) 5. 3. What evidence do we have that Australia was part of the supercontinent Gondwana? A) Speculation. B) Satellite images. C) Modern maps. D) Fossil records. Show Answer Correct Answer: D) Fossil records. 4. Which of the following is NOT a type of adaptation? A) Structural. B) Conditional. C) Physiological. D) Behavioral. Show Answer Correct Answer: B) Conditional. 5. Which species would be most affected by the overfishing of Alaskan salmon? A) Bears. B) Crayfish. C) Lobsters. D) Opossum. Show Answer Correct Answer: A) Bears. 6. What is the term used to describe the the place an organism lives? A) Habitat. B) Biome. C) Niche. D) Biodiversity. Show Answer Correct Answer: A) Habitat. 7. The variety and variability of habitats, communities, and ecological process in the biosphere is A) Ecosystem Adaptation. B) Ecosystem diversity. C) Ecosystem differential. D) Ecosystem standard. Show Answer Correct Answer: B) Ecosystem diversity. 8. Study of how living things relate to each other and their environment A) Evolution. B) Ecology. C) Parasitology. D) Ethology. Show Answer Correct Answer: B) Ecology. 9. A living person, animal, or plant. A) Organism. B) Cell. C) Abiotic factor. D) Liger. Show Answer Correct Answer: A) Organism. 10. Organisms only hold on to (a) percent of the energy they ingest. A) 100. B) A. 10. C) 25. D) 55. Show Answer Correct Answer: B) A. 10. 11. Mistletoe extracts water and nutrients from the spruce tree to the tree's detriment (harm). A) Mutualsim. B) Parasitism. C) Commensalism. D) None of the above. Show Answer Correct Answer: B) Parasitism. 12. What is the definition of Biodiversity A) The variety of different species in an ecosystem. B) The variety between the individuals within a species in an ecosystem. C) The place where an organism (animal, plant or microorganism) lives. D) All the organisms (the community) living in a particular habitat. Show Answer Correct Answer: A) The variety of different species in an ecosystem. 13. What are keystone species? A) Non-native species that have adapted to a new environment. B) Species that have disproportionate effects on ecosystem stability. C) The first species to return to an area after a natural disaster. D) Organisms that can collapse an ecosystem if they overpopulate an area. Show Answer Correct Answer: B) Species that have disproportionate effects on ecosystem stability. 14. Who introduced the term Natural Selection? A) Charles Darwin. B) Christopher Columbus. C) Stephen Hawking. D) Edward Einstein. E) Prince Charles. Show Answer Correct Answer: A) Charles Darwin. 15. Animals and plants cannot directly use all of the nitrogen found in our atmosphere. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 16. What states that no two species can occupy exactly the same niche in exactly the same habitat at the same time A) Competitive inclusion principle. B) Competitive exclusion principle. C) Competitive adaptation. D) Competitive nice principle. Show Answer Correct Answer: B) Competitive exclusion principle. 17. An example of a biotic factor in an ecosystem would be: A) Precipitation. B) Soil pH. C) Light intensity. D) Predation. Show Answer Correct Answer: D) Predation. 18. Lily Pad A) Biotic. B) Abiotic. C) All the above. D) None of the above. Show Answer Correct Answer: A) Biotic. 19. Limiting factors: A) Increase population growth. B) Decrease population growth. C) Affect only predators. D) Affect only producers. Show Answer Correct Answer: B) Decrease population growth. 20. Biotic Factors A) A living organism that shapes its environment. B) A non-living part of an ecosystem that shapes its environment. C) Any step in a nutritive series, or food chain, of an ecosystem. Organisms are classified into levels on the basis of their feeding behavior. D) The variety of life in the world or in a particular habitat or ecosystem. Show Answer Correct Answer: A) A living organism that shapes its environment. 21. What role do enzymes play in biochemical reactions? A) They increase the activation energy required for reactions. B) They act as catalysts to lower the activation energy. C) They are consumed in the reaction. D) They prevent reactions from occurring. Show Answer Correct Answer: B) They act as catalysts to lower the activation energy. 22. Which of the following is an example of a cultural ecosystem service? A) Watching a movie. B) Going to the gym. C) Eating at a restaurant. D) Visiting a national park. Show Answer Correct Answer: D) Visiting a national park. 23. True or False:A non-living thing is anything that doesn't grow and reproduce in such as rocks, soil, air, or water. A) X. B) True. C) False. D) X. Show Answer Correct Answer: B) True. 24. Organism A) A single member of a species; only biotic. B) A group of the same species; only biotic. C) A group of populations; only biotic. D) Multiple communities within a similar geographic location; biotic and abiotic. E) Multiple ecosystems on earth; biotic and abiotic. Show Answer Correct Answer: A) A single member of a species; only biotic. 25. What are all members of one kind of organism that live in a particular area? A) Population. B) Microrganisms. C) Community. D) Environment. Show Answer Correct Answer: A) Population. ← PreviousNext →Related QuizzesClass 12 Biology Chapter 14 Ecosystem Quiz 1Class 12 Biology Chapter 14 Ecosystem Quiz 2Class 12 Biology Chapter 14 Ecosystem Quiz 3Class 12 Biology Chapter 14 Ecosystem Quiz 4Class 12 Biology Chapter 14 Ecosystem Quiz 5Class 12 Biology Chapter 14 Ecosystem Quiz 7Class 12 Biology Chapter 14 Ecosystem Quiz 8Class 12 Biology Chapter 14 Ecosystem Quiz 9Class 12 Biology Chapter 14 Ecosystem Quiz 10Class 12 Biology Chapter 14 Ecosystem Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books