This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 185 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 185 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When two different species require the same resources we may observe ..... A) Resource partitioning. B) Predation. C) Interspecific competition. D) Intraspecific competition. Show Answer Correct Answer: C) Interspecific competition. 2. If the grass in the front yard of an abandoned house is not cut for several years, the yard may become overgrown with taller grasses, bushes, and shrubs. This is an example of the process of A) Evolution. B) Homeostasis. C) Ecological succession. D) Direct harvesting. Show Answer Correct Answer: C) Ecological succession. 3. Renewable resources are: A) Resources trhat can regenerate quickly and that is replaceable. B) When it rains enough to keep rivers full of water. C) When there is a drought. D) A resource tht cannot be replenished by natural processes. Show Answer Correct Answer: A) Resources trhat can regenerate quickly and that is replaceable. 4. The study of organism interactions is what scientific study? A) Biology. B) Ecology. C) Sociology. D) Astrology. Show Answer Correct Answer: B) Ecology. 5. Which organisms produce methane in anaerobic environments such as waterlogged soils? A) Archaea. B) Fungi. C) Eukaryotes. D) Eubacteria. Show Answer Correct Answer: A) Archaea. 6. Solar, wind and water energy are all ..... A) Non-sustainable resources. B) Sustainable resources. Show Answer Correct Answer: B) Sustainable resources. 7. The five levels of organization in the environment, from the first to the fifth level are A) Organism, population, biosphere, ecosystem, community. B) Organism, population, biotic elements, abiotic elements, community. C) Organism, population, community, ecosystem, biosphere. D) Organism, population, biosphere, abiotic elements, ecology. Show Answer Correct Answer: C) Organism, population, community, ecosystem, biosphere. 8. Trees A) Biotic. B) Abiotic. Show Answer Correct Answer: A) Biotic. 9. How much energy is moved from one trophic level to the next trophic level? A) 100%. B) 1/2. C) 10%. D) 25%. Show Answer Correct Answer: C) 10%. 10. What are consumers called that are only herbivores and are never carnivores? A) Decomposers. B) Primary Consumers. C) Secondary Consumers. D) Tertiary Consumers. Show Answer Correct Answer: B) Primary Consumers. 11. A particular golf course is using large amounts of nitrogen fertilizer. What process could move this nitrogen into a local stream? A) Volatilization. B) Nitrogen fixation. C) Runoff. D) Ammonification. Show Answer Correct Answer: C) Runoff. 12. What effect does bird extinction have on an ecosystem? A) Deer and other primary consumers lose food sources. B) Producers decrease because of lost food sources. C) Humans populations increase without bird populations. D) Insect populations increase without birds eating them. Show Answer Correct Answer: D) Insect populations increase without birds eating them. 13. This process is responsible for most environmental problems of excess nitrogen and phosphorus entering streams, lakes and oceans. A) Decomposition. B) Emissions from automobiles. C) Agriculture and house hold runoff. D) Photosynthesis. Show Answer Correct Answer: C) Agriculture and house hold runoff. 14. Humans are these type of consumers: A) Omnivores. B) Carnivores. C) Scavengers. D) None of above. Show Answer Correct Answer: A) Omnivores. 15. A relationship between organisms in which one depends on the other A) Symbiotic. B) Competition. C) Mutualism. D) Marriage. Show Answer Correct Answer: A) Symbiotic. 16. What do we call organisms that eat both plants and animals? A) Carnivore. B) Herbivore. C) Omnivore. D) Autotrophs. Show Answer Correct Answer: C) Omnivore. 17. Organisms that break down wastes and dead organisms and return the raw materials to the environment A) Producer. B) Consumer. C) Decoposer. D) None of above. Show Answer Correct Answer: C) Decoposer. 18. The movement of nitrogen through Earth, its atmosphere and living things A) Transpiration. B) Nitrogen cycle. C) Respiration. D) Carbon cycle. Show Answer Correct Answer: B) Nitrogen cycle. 19. Battery A) Brave. B) Bin. C) Bored. D) Battery. Show Answer Correct Answer: D) Battery. 20. Nitrogen makes up ..... percent of Earth's atmosphere. A) 58. B) 78. Show Answer Correct Answer: B) 78. ← 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