This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 180 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 180 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The burning of fossil fuels has harmed the environment by A) Decreasing acid rain in the northeast United States. B) Adding carbon dioxide to the atmosphere. C) Increasing biodiversity in the lakes and ponds of the Adirondacks. D) Depleting the ozone shield directly over western New York State. Show Answer Correct Answer: B) Adding carbon dioxide to the atmosphere. 2. The term 'biodiversity' is BEST described as A) The number of species on Earth. B) The variety of different life forms on Earth. C) The range of genera on Earth. D) The range of ecosystems on Earth. Show Answer Correct Answer: B) The variety of different life forms on Earth. 3. What level of organization is it when moles and rabbits dig underground to build home? A) Ecosystem. B) Population. C) Individual. D) Community. Show Answer Correct Answer: A) Ecosystem. 4. Symbiosis A) A relation in which two organisms live closely together. B) Parasite benefits host is hurt. C) One species benefits the other is neither hurt nor helped,. D) Both species benefit. Show Answer Correct Answer: A) A relation in which two organisms live closely together. 5. An organism that needs to eat other organisms to obtain energy is known as a: A) Mutualist. B) Producer. C) Autotroph. D) Consumer. Show Answer Correct Answer: D) Consumer. 6. All of the interacting species within a particular ecosystem A) Population. B) Biome. C) Organism. D) Community. Show Answer Correct Answer: D) Community. 7. Indicate if the organisms below are herbivores, carnivores, or plants.primary producer A) Plants. B) Herbivores. C) Carnivores. D) None of above. Show Answer Correct Answer: A) Plants. 8. What is the process in plants that produce food for the plants and oxygen. A) Photosnthesis. B) I don't know. C) Photosynthesis. D) Growing. Show Answer Correct Answer: C) Photosynthesis. 9. Sustainability refers to A) How many species are present in an ecosystem. B) When a species goes extinct. C) How long a species lives. D) The ability to maintain ecological process over long periods of time. Show Answer Correct Answer: D) The ability to maintain ecological process over long periods of time. 10. Which one is a biotic factor? A) Water. B) Sunlight. C) Air. D) Fungus. Show Answer Correct Answer: D) Fungus. 11. The most important reason for decrease in biodiversity is A) Habitat pollution. B) Introduction of exotic species. C) Over exploitation. D) Habitat destruction. Show Answer Correct Answer: D) Habitat destruction. 12. Example of mutualism A) Honey bee and a rose flower. B) Honey bee and honey suckle plant. C) A tapeworm in a human. D) Heart worms in dogs. Show Answer Correct Answer: B) Honey bee and honey suckle plant. 13. All animals in an ecosystem depend on ..... for energy. A) Decomposers. B) Producers. C) Consumers. D) Herbivores. Show Answer Correct Answer: B) Producers. 14. Which of the following is regarded as an indirect value of biodiversity conservation? A) Protection of coastlines from erosion. B) Obtaining medicinal products from plants. C) Generating an income for the guides of nature tours. D) Enjoying recreational activities in natural environments. Show Answer Correct Answer: A) Protection of coastlines from erosion. 15. Lions like to eat zebras, giraffes, antelope and hippos. Which animal would create the most competition for food for lions on the African Savanna. A) Crocodiles that eat all the same things. B) Rhinos that are herbivores. C) Tigers that immigrated illegally. D) Hyenas that hunt in packs. Show Answer Correct Answer: A) Crocodiles that eat all the same things. 16. If an area has all the wolves that it can support, the wolf population has reached its ..... A) Limiting factor. B) Carrying capacity. C) Immigration. D) Immigration. Show Answer Correct Answer: B) Carrying capacity. 17. Most of South America would be considered what biome? A) Desert. B) Tundra. C) Coniferous rainforest. D) Tropical rainforest. Show Answer Correct Answer: D) Tropical rainforest. 18. Don't stay here. Please ..... A) Come back. B) Go away. C) Stay with me. D) Sleep. Show Answer Correct Answer: B) Go away. 19. Energy Pyramid:bottom level A) Producer/Consumers (plants), 10% more energy than contained in Herbivores. B) Producer/Heterotrophs (plants), 10% more energy than contained in Herbivores. C) Producer/Autotrophs (plants), 10% more energy than contained in Herbivores. D) Producer/Autotrophs (plants), 10% less energy than contained in Herbivores. Show Answer Correct Answer: C) Producer/Autotrophs (plants), 10% more energy than contained in Herbivores. 20. Living parts of an ecosystem are called A) Biotic factors. B) Abiotic factors. C) Crazy critters. D) Animals and plants. Show Answer Correct Answer: A) Biotic factors. ← 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