This quiz works best with JavaScript enabled. Home > Ecology Environment > Studies > Ecology And Environment – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology And Environment Quiz 19 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The direction of the flow of energy in a food web is represented by ..... A) Light bulbs. B) Dotted Lines. C) Arrows. D) Bubbles. Show Answer Correct Answer: C) Arrows. 2. The nitrogen cycle is a process in which nitrogen is moving from the air to the ground to ..... and back again. A) Plants, animals, and humans (living things). B) Lava. C) Clouds. D) Hydrogen. Show Answer Correct Answer: A) Plants, animals, and humans (living things). 3. Fertilizers used to improve lawns and gardens may interfere with the equilibrium of an ecosystem because they A) Cause mutations in all plants. B) Cannot be absorbed by roots. C) Can be carried into local water supplies. D) Cause atmospheric pollution. Show Answer Correct Answer: C) Can be carried into local water supplies. 4. What amount of percentage does the energy decrease as it goes up the pyramid? A) 100%. B) 1000%. C) 10%. D) 1%. Show Answer Correct Answer: C) 10%. 5. How should you prepare for this test tomorrow? A) Study. B) Watch Netflix. C) Play sliter.io (game). D) Go fishing. Show Answer Correct Answer: A) Study. 6. Why can an invasive species be potentially threatening to an ecosystem? A) Organisms in the ecosystem may not know how to protect themselves. B) They can add genetic variation. C) They can mate with members of the community which leads to the evolution of a new species. D) They can be used to synthesize new medicine for harmful diseases. Show Answer Correct Answer: A) Organisms in the ecosystem may not know how to protect themselves. 7. What factor does not determine the size of an individual's ecological footprint? A) Amount and efficiency of resource use. B) Amount of waste produced. C) Size of population. D) Toxicity of waste produced. Show Answer Correct Answer: C) Size of population. 8. Study of interactions between organisms and their environment A) Niche. B) Community. C) Ecology. D) Ecosystem. Show Answer Correct Answer: C) Ecology. 9. Which ecosystem would scientists consider to be the most stable? A) A coral reef that is fished by native people several times a day. B) A tropical rainforest that is being cut down to make room for farmland. C) A temperate forest where all the tree trunks have been damaged by beetles. D) A savanna that retains the same number of species even when a drought occurs. Show Answer Correct Answer: D) A savanna that retains the same number of species even when a drought occurs. 10. What is a climax community? A) An ecosystem that is just beginning to grow. B) An ecosystem that is stable and mature and has reached the final stages of succession. C) An ecosystem that is damaged by a forest fire. D) An ecosystem that is damaged by a landslide. Show Answer Correct Answer: B) An ecosystem that is stable and mature and has reached the final stages of succession. 11. How do warmer temperatures and higher rainfall generally influence biodiversity? A) Biodiversity increases. B) Biodiversity decreases. C) Biodiversity stabilizes. D) Biodiversity increases then decreases. Show Answer Correct Answer: A) Biodiversity increases. 12. Gradual changes in all the interconnected weather elements on our planet: A) Conifer. B) Climate change. C) Wildfire. D) Ecosystem. Show Answer Correct Answer: B) Climate change. 13. Ecology is the study of A) The interactions of organisms and their environment. B) The human body. C) The study of communities and populations. D) The study of living organisms. Show Answer Correct Answer: A) The interactions of organisms and their environment. 14. What is the characteristic shape of a curve illustrating logistic growth? A) J-shaped. B) U-shaped. C) S-shaped. D) L-shaped. Show Answer Correct Answer: C) S-shaped. 15. What is the dispersion pattern of herding animals, birds that flock together, and fish that form schools? A) Clumped. B) Random. C) Uniform. D) Unpredictable. Show Answer Correct Answer: A) Clumped. 16. A GROUP OF POPULATION OF TWO OR MORE SPIECES OCCUPYING THE SAME GEOGRAPHICAL AREA DURING A PARTICULAR TIME CALLED A) ECOSYSTEM. B) COMMENSALISM. C) INTERACTION. D) COMMUNITY. Show Answer Correct Answer: D) COMMUNITY. 17. What "fixes" nitrogen in the soil so that it can be used by plants? A) Decomposing plants. B) Bacteria. C) Viruses. D) Rocks. Show Answer Correct Answer: B) Bacteria. 18. Which is the thin layer of the earth that supports life and also the largest level of ecological organization? A) A community. B) The biosphere. C) A population. D) The biome. Show Answer Correct Answer: B) The biosphere. 19. A symbiotic relationship in which one organism benefits and the other is harmed. A) Commensalism. B) Parasitism. C) Mutualism. D) Producism. Show Answer Correct Answer: B) Parasitism. 20. Which of the following gases is thought to be responsible for increasing global temperatures A) Argon. B) Nitrogen. C) Carbon dioxide. D) Ozone. Show Answer Correct Answer: C) Carbon dioxide. ← 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