This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 267 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 267 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What level on an energy pyramid has organisms having the MOST energy? A) Top level. B) Bottom level. C) Middle level. D) None of above. Show Answer Correct Answer: B) Bottom level. 2. In this relationship, predators live on/in a host and depend on the host for nutrition A) Commensalism. B) Parasitism. C) Self defense. D) Advantage relationship. Show Answer Correct Answer: B) Parasitism. 3. Natural selection or survival of the fittest, results in ..... such as webbed feet, special beaks on different birds, and coloration A) Biotic. B) Adaptation. C) Parasitism. D) Abiotic. Show Answer Correct Answer: B) Adaptation. 4. Heterotrophs that eat producers and other heterotrophs are called ..... A) Autotrophs. B) Herbivores. C) Carnivores. D) Omnivores. Show Answer Correct Answer: D) Omnivores. 5. Which is not a decomposer A) Vulture. B) Bacteria. C) Fungus. D) None of above. Show Answer Correct Answer: A) Vulture. 6. Which factor(s) affect aquatic ecosystems? A) Depth. B) Flow. C) Nutrients. D) All affect aquatic ecosystems. Show Answer Correct Answer: D) All affect aquatic ecosystems. 7. Variation of a species that live in different geographic areas A) Biodiversity. B) Taxonomy. C) Binomial Nomenclature. D) Subspecies. Show Answer Correct Answer: D) Subspecies. 8. The most energy is available at the ..... level of an energy pyramid? A) Consumer. B) Predator. C) Decoposer. D) Producer. Show Answer Correct Answer: D) Producer. 9. A tanker that runs aground causing oil to leak into the ocean is a ..... water pollutant. A) Point-Source. B) Nonpoint-Source. Show Answer Correct Answer: A) Point-Source. 10. If there is not enough food, a species may ..... A) Become extinct. B) Thrive. C) Live longer. D) None of above. Show Answer Correct Answer: A) Become extinct. 11. All the organisms of the same species in an area A) Biome. B) Population. C) Community. D) Ecosystem. Show Answer Correct Answer: B) Population. 12. To be considered a community, populations must live close enough together to interact. A) True. B) False. Show Answer Correct Answer: A) True. 13. Identify an a example of an Abiotic Factor? A) Panda. B) Turtle. C) Butterfly. D) Sunlight. Show Answer Correct Answer: D) Sunlight. 14. The main source of energy for all of earth's food chains is the ..... A) Sun. B) Water. C) Nutrients. D) Producers. Show Answer Correct Answer: A) Sun. 15. Competitive exclusion principle is A) Principle that states no two species can occupy the same niche in the same habitat at the same time. B) Principle that states I am so hungry that I can eat a hippo. C) Principle that states light, food and space are NOTHING. D) Principle that states an organism can reproduce. Show Answer Correct Answer: A) Principle that states no two species can occupy the same niche in the same habitat at the same time. 16. In the oxygen-carbon dioxide cycle, organisms such as plants release oxygen into the atmosphere during ....., where it can be taken in by animals, plants, and other organisms. A) Cellular respiration. B) Commensalism. C) Homeostasis. D) Photosynthesis. Show Answer Correct Answer: D) Photosynthesis. 17. When only a few of its members are living that the entire species may become extinct. A) Biological species. B) Evolutionary species. C) Threatened species. D) Endangered species. Show Answer Correct Answer: D) Endangered species. 18. The term ecologists use to describe the number of individuals moving away from a population is A) Emigration. B) Immigration. Show Answer Correct Answer: A) Emigration. 19. What are abiotic factors? A) Factors that are living. B) Factors that are non-living. C) Factors that affect animals. D) Factors that affect plants. Show Answer Correct Answer: B) Factors that are non-living. 20. As the hawk population increases in an ecosystem, the deer and mouse population will most likely decrease as a result of: A) Decrease in food source. B) Increase in disease. C) Increase in predators. D) Decrease in habitat. Show Answer Correct Answer: C) Increase in predators. ← 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