This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 28 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 28 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which sphere includes trees, grasses, and squirrels? A) Atmosphere. B) Biosphere. C) Cryosphere. D) Geosphere. Show Answer Correct Answer: B) Biosphere. 2. A community contains A) Only one species. B) Multiple species. C) Living and non-living components. D) All the similar biomes across the world. Show Answer Correct Answer: B) Multiple species. 3. Animals that may soon die out. A) Endangered species. B) Endangered species. C) Endangered species. D) Endangered species. Show Answer Correct Answer: A) Endangered species. 4. Which of the following means of transportation uses a renewable resource for its energy source? A) Solar powered car. B) Coal powered steam train. C) Natural gas car. D) Gasoline truck. Show Answer Correct Answer: A) Solar powered car. 5. The process of subdividing a niche into smaller niches is called ..... A) Interspecific competition. B) Resource partitioning. C) Mutualism. D) Commensalism. Show Answer Correct Answer: B) Resource partitioning. 6. What type of organisms are always found at the first trophic level? A) Predators. B) Autotrophs. C) Consumers. D) Heterotrophs. Show Answer Correct Answer: B) Autotrophs. 7. The organism that benefits in parasitism is called the: A) Parasite. B) Host. C) Prey. D) Predator. Show Answer Correct Answer: A) Parasite. 8. What's the definition of ecology? A) Eco-Life Logy-Study. B) Eco-Government Logy-Study. C) Eco-Environment Logy-Study. D) Eco-Nature Logy-Study. Show Answer Correct Answer: C) Eco-Environment Logy-Study. 9. Which of the following is an organism that eats only meat? A) Herbivore. B) Carnivore. C) Omnivore. D) Producer. Show Answer Correct Answer: B) Carnivore. 10. This biome has hot summers, cold winters, diverse grasses, trees, and shrubs, and is common in central US. A) Savanna. B) Shrublands. C) Temperate forest. D) Tundra. Show Answer Correct Answer: B) Shrublands. 11. What impact have humans had on the phosphorus cycle? I. Use of phosphorus containing fertilizers II. Increased urbanization of forested areas III. Increased use of phosphorus containing detergents A) I only. B) II only. C) III only. D) I, II, and III. Show Answer Correct Answer: D) I, II, and III. 12. In the nitrogen cycle, denitrifying bacteria convert A) Atmospheric nitrogen to nitrates. B) Nitrates to atmospheric nitrogen. C) Ammonium compounds to nitrates. D) Atmospheric nitrogen to ammonium compounds. Show Answer Correct Answer: B) Nitrates to atmospheric nitrogen. 13. What is the correct decomposer? A) Fungus. B) Sun. C) Tree. D) Weather. Show Answer Correct Answer: A) Fungus. 14. A food chain is: A) An animal that eats only plants. B) A diagram that shows how energy moves from one organism to another. (Grass>Mouse>Owl). C) An animal that is hunted and eaten by another animal. D) None of above. Show Answer Correct Answer: B) A diagram that shows how energy moves from one organism to another. (Grass>Mouse>Owl). 15. The second link in a food chain is a ..... A) Consumer. B) Producer. C) Herbivore. D) Carnivore. Show Answer Correct Answer: C) Herbivore. 16. The presence of wastes, such as plastic bags and motor oil, in lakes and streams miles away from developed areas suggests that A) . ecosystems are interconnected and human action can alter ecosystem equilibrium. B) Recycling programs have failed to conserve biotic resources. C) Natural processes can alter ecosystem stability. D) Direct harvesting practices have led to irreversible destruction of ecosystems. Show Answer Correct Answer: A) . ecosystems are interconnected and human action can alter ecosystem equilibrium. 17. Environmental factor boundary where life is impossible A) Maximum. B) Minimum. C) Danger points. D) Pessimum. E) Optimum. Show Answer Correct Answer: C) Danger points. 18. An environment that is more productive and more resistant to stress and changes is? A) Biodiverse. B) Rich. C) Rich and Biodiverse. D) Neither. Show Answer Correct Answer: C) Rich and Biodiverse. 19. A group of individuals of the same species that live in the same ecosystem is considered a A) Organism. B) Population. C) Community. D) Animals. Show Answer Correct Answer: B) Population. 20. Ozone depleting substances have been depleting the ozone layer since the 1970's. Which example could be classified as a result of a hole in the ozone layer? A) Less rainfall occurs over the Indian Ocean. B) More ultraviolet radiation reaches Earth's surface. C) More pollution is released into Earth's atmosphere. D) Ocean current circulation has been greatly affected. Show Answer Correct Answer: B) More ultraviolet radiation reaches Earth's surface. ← 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