This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 206 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 206 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which symbols best describe mutualism? A) +, +. B) +, -. C) +, 0. D) -, 0. Show Answer Correct Answer: A) +, +. 2. Adaptations may be: A) Structural (parts of the organism e.g. big ears). B) Behavioural. C) Structural or behavioural. D) Structural, behavioural or functional. Show Answer Correct Answer: C) Structural or behavioural. 3. Decomposers are very important in an ecosystem because they break down dead organisms. True or False? A) True. B) False. Show Answer Correct Answer: A) True. 4. The intertidal zone of oceans A) Surrounds continents. B) Is on the coastline. C) Has tides that rise and fall each day. D) Is the open ocean. Show Answer Correct Answer: C) Has tides that rise and fall each day. 5. What is the measurement of population per unit area or unit volume? A) Capacity. B) Population Density. C) Size. D) Capacity. Show Answer Correct Answer: B) Population Density. 6. Which biome holds the greatest biodiversity? A) Grassland. B) Tundra. C) Rainforest. D) Desert. Show Answer Correct Answer: C) Rainforest. 7. What percentage of energy passes on from one trophic level to the next? A) 100%. B) 1000%. C) 10%. D) 1%. Show Answer Correct Answer: C) 10%. 8. Resources that we find in nature and are used without much modification are called: A) Human resources. B) Natural resources. C) Renewable resources. D) Human made resources. Show Answer Correct Answer: B) Natural resources. 9. Metalloids conduct heat exactly like metals A) True. B) False. Show Answer Correct Answer: B) False. 10. Remora fish attach to sharks, and eat food scraps from the sharks' leftovers. The shark is unaffected. This is an example of: A) Decomposition. B) Commensalism. C) Mutualism. D) Parasitism. Show Answer Correct Answer: B) Commensalism. 11. What biological molecules require nitrogen in their structure? A) ATP. B) DNA. C) RNA. D) All of these. Show Answer Correct Answer: D) All of these. 12. How do we obtain energy from biomass fuels? A) Mine it. B) Burn it. C) Mix with water. D) Combine with chemicals. Show Answer Correct Answer: B) Burn it. 13. Bacteria, fungi, and worms typically serve what role in an ecosystem? A) Herbivore. B) Carnivore. C) Omnivore. D) Decoposer. Show Answer Correct Answer: D) Decoposer. 14. An example of a structural adaptation is ..... A) A turtle hiding inside its shell. B) The spikes on a porcupine fish. C) A rabbit burrowing underground. D) A viper biting when threatened. Show Answer Correct Answer: B) The spikes on a porcupine fish. 15. ..... are the living factors in an environment and may include food sources and other populations. A) Community. B) Competition. C) Biotic factors. D) Population. Show Answer Correct Answer: C) Biotic factors. 16. Which characteristics are biomes not classified by? A) Climate. B) Plants. C) Soil quality. D) Precipitation. Show Answer Correct Answer: C) Soil quality. 17. An illustration that uses arrows to show the MANY possible directions in which matter and energy can pass through the organisms in an ecosystem. A) Food chain. B) Food web. C) Energy Pyramid. D) Succession Map. Show Answer Correct Answer: B) Food web. 18. What is a food chain? A) A representation of an organism's life cycle. B) A way to show the feeding relationships between organisms. C) The sequence of events that occurs during photosynthesis. D) A way to show how animals interact with nonliving parts of the environment. Show Answer Correct Answer: B) A way to show the feeding relationships between organisms. 19. Organisms that obtains its energy from abiotic sources, such as sunlight or inorganic chemicals A) Autotroph. B) Heterotroph. C) Omnivore. D) Carnivore. Show Answer Correct Answer: A) Autotroph. 20. Is water an element or a compound? A) Element. B) Compound. Show Answer Correct Answer: B) Compound. ← 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