This quiz works best with JavaScript enabled. Home > Ecology Environment > Ecology And Environment – Quiz 28 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology And Environment Quiz 28 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following cycles does photosynthesis produce oxygen and respiration produce carbon dioxide? A) The water cycle. B) The carbon cycle. C) The nitrogen cycle. D) The hydrogen cycle. Show Answer Correct Answer: B) The carbon cycle. 2. Separation of wilderness areas away from other wilderness areas A) Mitigation. B) Habitat Degredation. C) Habitat Fragmentation. D) Aphotic Zone. Show Answer Correct Answer: C) Habitat Fragmentation. 3. A living or once-living organisms in an ecosystem is a A) Population. B) Biotic factor. C) Abiotic factor. D) Community. Show Answer Correct Answer: B) Biotic factor. 4. Which of the following determines the carrying capacity of an ecosystem? A) The most limited resources required for survival. B) The amount of disease affecting organisms in the ecosystem. C) The amount of rainfall the habitat receives. D) The number of predators in the area. Show Answer Correct Answer: A) The most limited resources required for survival. 5. Cougars are predators that often eat weakened or diseased animals. This is a description of the ..... of cougars. A) Mutualism. B) Commensalism. C) Niche. D) Habitat. Show Answer Correct Answer: C) Niche. 6. Which of the following best describes an ecosystem? A) All the living organisms in an area and their physical surroundings. B) A region with a distinct climate. C) All the living organisms of the same species throughout the world. D) All the living organisms in an area. Show Answer Correct Answer: A) All the living organisms in an area and their physical surroundings. 7. What is the largest level of ecological study? A) Ecosystem. B) Population. C) Community. D) Organism. Show Answer Correct Answer: A) Ecosystem. 8. What is something in an environment that will limit population growth? A) Carrying Capacity. B) Limiting Factor. C) Abiotic Factor. D) Biotic Factor. Show Answer Correct Answer: B) Limiting Factor. 9. A stable ecosystem is characterized by having A) Predators that outnumber their prey. B) A continual input of energy. C) Limited autotrophic nutrition. D) No competition between species. Show Answer Correct Answer: B) A continual input of energy. 10. The term biodiversity refers to A) The number of species living on earth. B) The number and variety of species living on earth. C) The number and variety of species that are considered renewable. D) The number and variety of species that live in in an area. Show Answer Correct Answer: D) The number and variety of species that live in in an area. 11. So, how does an ecosystem start if there is no soil? A) Moss and lichen break down rock and lava and produce soil. B) Moss and lichen are air borne and they move by the wind to start in a secondary succession environment. C) Moss and lichen are simple living organism that can start growing almost anywhere. D) All answers. Show Answer Correct Answer: D) All answers. 12. One organism hunts and eats another organism. A) Predation. B) Mutualism. C) Carnivore. D) Parasitism. Show Answer Correct Answer: A) Predation. 13. To keep our ecosystem healthy, we must keep our? A) Biodegradability. B) Earth. C) Sun. D) Biodiversity. Show Answer Correct Answer: D) Biodiversity. 14. Which cycle involves condensation, evaporation, and precipitation? A) The water cycle. B) The carbon cycle. C) The nitrogen cycle. D) The motor cycle. Show Answer Correct Answer: A) The water cycle. 15. How do humans affect their environment? A) Positvely. B) Negatively. C) Both. D) None of above. Show Answer Correct Answer: C) Both. 16. Populations of different species that interact in some way. A) Organism. B) Population. C) Community. D) Ecosystem. Show Answer Correct Answer: C) Community. 17. ..... is the water that collects in spaces and soil UNDERGROUND. A) Soil water. B) Groundwater. C) Under pools. D) Ice caps. Show Answer Correct Answer: B) Groundwater. 18. Plants that have deep roots, which extend, are able to reach cooler regions and absorb water that the roots of other plants can't reach. This adaptation is expected in a habitat with which of the following climatic conditions? A) Cool and sunny. B) Hot and arid. C) Wet and cloudy. D) Cold and dark. Show Answer Correct Answer: B) Hot and arid. 19. Which of the following are NOT factors affecting the environment? A) Use of energy. B) Use of resources. C) Water and air quality. D) Financial cost. Show Answer Correct Answer: D) Financial cost. 20. A community of living and nonliving things in their natural environment makes up a A) Food web. B) Ecosystem. C) Food chain. D) None of above. Show Answer Correct Answer: B) Ecosystem. ← PreviousNext →Related 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 9Ecology And Environment Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books