This quiz works best with JavaScript enabled. Home > Ecology Environment > Studies > Ecology And Environment – Quiz 36 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology And Environment Quiz 36 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What % of freshwater is on Earth? A) 97%. B) 71%. C) 3 %. D) 1 %. Show Answer Correct Answer: C) 3 %. 2. ..... is a mixture of decayed plants, vegetables or food, etc. that can be added to soil to improve its quality. A) Pesticide. B) Waste. C) Compost. D) Chemical fertilize. Show Answer Correct Answer: C) Compost. 3. Which biome contains large populations of grazing herbivores, few species of birds, and deep, rich soil? A) Taiga. B) Tundra. C) Deciduous forest. D) Grassland. Show Answer Correct Answer: D) Grassland. 4. What is global warming A) The normal temperature fluctuations of Earth's climate cycle. B) The melting of the polar ice caps. C) The trend of increasing temperatures on Earth. D) The changes in Earth's biosphere that affect the atmosphere. Show Answer Correct Answer: C) The trend of increasing temperatures on Earth. 5. A keystone species is important since its presence: A) Keeps the entire food chain balanced. B) Is essential for the correct amount of energy flow. C) Allows for predation to occur more efficiently. D) Keeps invasive species away from the food web. Show Answer Correct Answer: A) Keeps the entire food chain balanced. 6. Logistic growth has 3 phases. In Phase 1, the population grows rapidly. In Phase 2, population grows slowly. In Phase 3, growth stops. What causes growth to stop in the 3rd phase of logistic growth? A) Emigration. B) Immigration. C) Exponential Growth. D) Carrying Capacity. Show Answer Correct Answer: D) Carrying Capacity. 7. What is Mr. Mitchell's favorite color? A) Red. B) Green. C) Blue. D) White. Show Answer Correct Answer: C) Blue. 8. Species that is seriously at risk for extinction A) Invasive Species. B) Endangered Species. C) Threatened Species. D) Humans. Show Answer Correct Answer: B) Endangered Species. 9. A resource or environmental factor that limits the size of a population. (the amount of water limits the amount of animals that can live there) A) Adaptation. B) Limiting Factors. C) Interdependence. D) Niche. Show Answer Correct Answer: B) Limiting Factors. 10. The levels organism, population and community have only which type of factors? A) Biotic. B) Abiotic. C) Biotic and abiotic. D) None of above. Show Answer Correct Answer: A) Biotic. 11. Which of the following best describes a community? A) Sharks, groupers, anemones and shrimp on a coral reef. B) Decorator crabs on the seafloor. C) Loggerhead sea turtles in Atlantic. D) Prairie grassland in Wyoming. Show Answer Correct Answer: A) Sharks, groupers, anemones and shrimp on a coral reef. 12. What is the goal of the pioneer species in Primary Succession? A) To kill the dead materials after a disaster. B) To rebuild soil. C) To feed Johnny. D) To put fresh oxygen into the air. Show Answer Correct Answer: B) To rebuild soil. 13. What is a consumer that preys only on other consumers? A) Carnivore. B) Herbivore. C) Detritovore. D) Omnivore. Show Answer Correct Answer: A) Carnivore. 14. Any close relationship between organisms is called ..... A) Consumer. B) Carrying Capacity. C) Symbiosis. D) Ecosystem. Show Answer Correct Answer: C) Symbiosis. 15. A biological community of interacting organisms and their physical environment. A) Ecosystem. B) Food Chain. C) Food Web. D) Habitat. Show Answer Correct Answer: A) Ecosystem. 16. As species disappear from a prairie ecosystem, their disappearance results in decreased- A) Sustainability of the prairie ecosystem. B) Numbers of species in nearby ecosystems. C) Likelihood of prairie wildfires breaking out. D) Numbers of offspring in remaining species. Show Answer Correct Answer: A) Sustainability of the prairie ecosystem. 17. Which of the following lists include only biotic parts of an ecosystem? A) Rain, Grass, Temperature, Mice. B) Sand, Air, Water, Sunlight. C) Tree, Grass, Bear, Bird. D) Bacteria, Soil, Minerals, Worms. Show Answer Correct Answer: C) Tree, Grass, Bear, Bird. 18. Taking more fish out of an ecosystem than can be replaced by the reproductive rates of the remaining populations. A) Extint. B) Fishing. C) Over fishing. D) Over population. Show Answer Correct Answer: C) Over fishing. 19. All the organisms in a particular location, including their nonliving environment A) Ecosystem. B) Carnivore. C) Niche. D) Population. Show Answer Correct Answer: A) Ecosystem. 20. Kudzu, a vine covering many acres of North Carolina was introduced to the United States in 1876 to control erosion. Over the years scientists have found that kudzu creates problems by growing rapidly and preventing other plants from getting sunlight. Which term best describes kudzu? A) A noncompetitive species. B) An agent of erosion. C) An invasive, exotic, non-native species. D) An abiotic factor. Show Answer Correct Answer: C) An invasive, exotic, non-native species. ← PreviousNext →Related QuizzesEcology Environment QuizzesEcology And Environment Quiz 1Ecology And Environment Quiz 2Ecology And Environment Quiz 3Ecology And Environment Quiz 4Ecology And Environment Quiz 5Ecology And Environment Quiz 6Ecology And Environment Quiz 7Ecology And Environment Quiz 8Ecology And Environment Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books