This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 217 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 217 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Four basic needs of life A) Space, food, shelter, animals. B) Electricity, food, shelter, space. C) Food, water, shelter, space. D) Shelter, food, space, friends. Show Answer Correct Answer: C) Food, water, shelter, space. 2. Dogs pant in the summer, even while they are taking a nap. Why? A) To help them relax. B) To scare off predators. C) To help keep them cool since they don't sweat. D) To get on your nerves. Show Answer Correct Answer: C) To help keep them cool since they don't sweat. 3. Which biome is characterized by very low temperatures, high winds, and permafrost? A) Desert. B) Tropical dry forest. C) Tundra. D) Wetland. Show Answer Correct Answer: C) Tundra. 4. Producer A) Green plant or bacterium, part of the first level of food chain. B) Produces food. C) Produces plants. D) None of above. Show Answer Correct Answer: A) Green plant or bacterium, part of the first level of food chain. 5. Of all amphibians are threatened with extinction A) True. B) False. Show Answer Correct Answer: B) False. 6. A system comprising all the biotic and abiotic factors in an area and all the interacts among them A) Ecosystem. B) Community. C) Population. D) Species. Show Answer Correct Answer: A) Ecosystem. 7. How is carbon dioxide removed from the atmosphere? A) Through transpiration. B) Through photosynthesis. C) Through factory emissions. D) Sunlight. Show Answer Correct Answer: B) Through photosynthesis. 8. Infected A) Contaminated. B) Ill. C) Mad about. D) Diseased. Show Answer Correct Answer: A) Contaminated. 9. Which of the following contains all organisms living in an area? A) Organism. B) Population. C) Community. D) Ecosystem. Show Answer Correct Answer: C) Community. 10. What is the term for a group of organisms of the same species living in a particular area? A) Population. B) Commuity. C) Ecosystem. D) Biosphere. Show Answer Correct Answer: A) Population. 11. The spacing of organisms relative to one another A) Size. B) Density. C) Dispersion. D) None of above. Show Answer Correct Answer: C) Dispersion. 12. The biggest cause of extinction today is A) Over-harvesting. B) Pollution. C) Climate change. D) Habitat loss. Show Answer Correct Answer: D) Habitat loss. 13. Trees, grass, squirrels, bacteria are: A) Abiotic, non-living. B) Abiotic, living. C) Biotic, non-living. D) Biotic, living. Show Answer Correct Answer: D) Biotic, living. 14. High biodiversity is a sign of a healthy ecosystem. A) True. B) False. Show Answer Correct Answer: A) True. 15. Nitrogen fixation processes nitrogen from which of the following sources? A) Lightning. B) Fertilizers. C) Dead plants. D) Atmosphere. Show Answer Correct Answer: D) Atmosphere. 16. What role do decomposers play in the phosphorous cycle? A) Absorb phosphorous. B) Release phosphorous into atmosphere. C) Return phosphorous into the soil. D) Combustion. Show Answer Correct Answer: C) Return phosphorous into the soil. 17. What is it called when several organisms need to use the same resource at the same time? A) Predation. B) Symbiosis. C) Niche. D) Competition. Show Answer Correct Answer: D) Competition. 18. Living organism and products of organisms A) Community. B) Biotic. C) Abiotic. D) Species. Show Answer Correct Answer: B) Biotic. 19. Which level is found at the top? A) Primary Consumers. B) Tertiary Consumers. C) Producers. D) Secondary Consumers. Show Answer Correct Answer: B) Tertiary Consumers. 20. Cacti, Lichens, Locusts, Uromastix, and Quails are member of ..... Ecosystem. A) Marine. B) Grassland. C) Aquatic. D) Desert. Show Answer Correct Answer: D) Desert. ← 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