This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 251 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 251 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... feed on dead leaves and animal feces, among other debris. A) More destructive. B) Omnivores. Show Answer Correct Answer: A) More destructive. 2. Species that are indigenous to an area with no human intervention A) Invasive species. B) Native species. C) All species that live in an ecosystem. D) None of above. Show Answer Correct Answer: B) Native species. 3. A community is defined as A) All the different species that live in an ecosystem. B) All the members of the same species. C) All the non-living things in an ecosystem. D) The average number of species in an ecosystem. Show Answer Correct Answer: A) All the different species that live in an ecosystem. 4. A part of Earth in which life exists including land, water, and air or atmosphere is called a A) Biome. B) Population. C) Niche. D) Biosphere. Show Answer Correct Answer: D) Biosphere. 5. The final end point of succession is called ..... A) Staged community. B) Climax community. C) Climatic change. D) Community development. Show Answer Correct Answer: B) Climax community. 6. What do all food chains start with? A) Consumers. B) Producers. C) Omnivores. D) Herbivores. Show Answer Correct Answer: B) Producers. 7. Logistic growth is: A) A growth pattern when babies are born every day in every state. B) A growth pattern wher only teens have babies. C) A growth pattern in which a populatation's growth rate slows or stops following a period of exponential growth. D) None of above. Show Answer Correct Answer: C) A growth pattern in which a populatation's growth rate slows or stops following a period of exponential growth. 8. What type of symbiosis? * Skunk Cabbage plants attract flies in cool weather by making heat and provide food to the flies that come. * Flies move from one Skunk Cabbage plant to the next feeding and transferring pollen as they go. A) Commensalism. B) Mutualism. C) Parasitism. D) Predation. Show Answer Correct Answer: B) Mutualism. 9. If an eagle eats a mouse that eats some berries, the eagle is a ..... A) Producer. B) Second level consumer. C) First level/ primary consumer. D) Decoposer. Show Answer Correct Answer: B) Second level consumer. 10. In lakes in New York State that are exposed to acid rain, fish populations are declining. This is primarily due to changes in which lake condition? A) BioticFactors. B) Ozonelevels. C) Increasedsunlight (optional). D) PH. Show Answer Correct Answer: D) PH. 11. Components of an environment that are living or from something living A) Abiotic. B) Aquatic. C) Acidic. D) Biotic. Show Answer Correct Answer: D) Biotic. 12. Each step in a food chain is called a trophic level. What percentage of energy available at one trophic level is transferred to organisms at the next level? A) About 2 percent. B) About 10 percent. C) About 25 percent. D) About 50 percent. Show Answer Correct Answer: B) About 10 percent. 13. When a field is burned to prepare it for farming, the energy that was present in the field: A) Is lost in the smoke and ash. B) Is lost mostly as heat. C) Is stored in the soil as ash. D) Is stored in the soil as heat. Show Answer Correct Answer: B) Is lost mostly as heat. 14. Humans have a considerable effect on the hydrologic cycle. Which of the following has a direct effect on this cycle? I. Deforestation II. Urbanization III. Mining of fossil fuels A) I only. B) II only. C) I and II. D) I, II and III. Show Answer Correct Answer: D) I, II and III. 15. Which is NOT a process of the water cycle? A) Precipitation. B) Freezing. C) Transpiration. D) Evaporation. Show Answer Correct Answer: B) Freezing. 16. Which term describes a group of different speciesthat live together in a defined area? A) A species. B) A population. C) A community. D) An ecosystem. Show Answer Correct Answer: C) A community. 17. The relationship between a bee and a flower is an example of what kind of symbiotic relationship? A) Commensalism. B) Mutualism. C) Parasitism. D) Competition. Show Answer Correct Answer: B) Mutualism. 18. This level of the energy pyramid contains the most energy A) Producers. B) Primary consumers. C) Secondary consumers. D) Tertiary consumers. Show Answer Correct Answer: A) Producers. 19. The variety of living things. (ex:lions, pine trees, and lady bugs are all different species) A) Ecosystem Diversity. B) Genetic Diversity. C) Species Diversity. D) None of above. Show Answer Correct Answer: C) Species Diversity. 20. Desert, Rain Forest and Tundra are examples of: A) Biomes. B) Ecosystems. C) Environments. D) None of above. Show Answer Correct Answer: A) Biomes. ← 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