This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 268 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 268 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which major biome is home to cacti, mesquite, white torn, pack rats, small reptiles, and coyotes? A) Desert. B) Taiga. C) Tundra. D) Grassland. Show Answer Correct Answer: A) Desert. 2. Arrows in a food web show the flow of A) Energy. B) Protein. C) Nutrients. D) Glucose. Show Answer Correct Answer: A) Energy. 3. If a keystone species is removed from an ecosystem, A) Abiotic and biotic factors can be affected. B) Only biotic factors can be affected. C) Only abiotic factors can be affected. D) Neither abiotic nor biotic factors can be affected. Show Answer Correct Answer: A) Abiotic and biotic factors can be affected. 4. Animals fighting over food or territory is an example of A) Competition. B) Cooperation. C) Commensalism. D) None of above. Show Answer Correct Answer: A) Competition. 5. People should protect the ..... they live in. A) Dumping site. B) Environment. C) Endangered species. D) Exhaust fumes. Show Answer Correct Answer: B) Environment. 6. Nonrenewable resources are A) The sum total of organisms in a biosphere. B) Resources that cannot be replenished by natural processes. C) When rivers are dry. D) Resources that regenerate quickly. Show Answer Correct Answer: B) Resources that cannot be replenished by natural processes. 7. The total mass of organisms at a trophic level A) Biomass. B) Biotic factor. Show Answer Correct Answer: A) Biomass. 8. We should (protect the environment). A) Save the environment. B) Take care of the environment. C) Protect the environment. D) Recycle the environment. Show Answer Correct Answer: C) Protect the environment. 9. One organism benefits, the other is harmed or killed; tapeworms A) Parasitism. B) Mutualism. C) Symbiosis. D) Rain. Show Answer Correct Answer: A) Parasitism. 10. This level of the energy pyramid contains the least energy A) Producers. B) Primary consumers. C) Secondary consumers. D) Tertiary consumers. Show Answer Correct Answer: D) Tertiary consumers. 11. 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. 12. Which nutrient is not cycled through the atmosphere and stays only on ground level? A) Carbon. B) Nitrogen. C) Phosphorus. D) Water. Show Answer Correct Answer: C) Phosphorus. 13. Which of the following are included within a community? A) Plants, animals, rocks, water. B) Water, sunlight, plants, animals. C) Plants, animals, fungi, bacteria. D) Fungi, Bacteria, rocks, sunlight. Show Answer Correct Answer: C) Plants, animals, fungi, bacteria. 14. Living parts of environment A) Abiotic factors. B) Biotic factors. C) Habitat. D) Population. Show Answer Correct Answer: B) Biotic factors. 15. Which would most likely result in primary succession? A) Old forest growing. B) Undisturbed prairie. C) Pollution kills mountain lake species. D) A Newly formed volcanic island. Show Answer Correct Answer: D) A Newly formed volcanic island. 16. A group of zebras makes up a(n) ..... A) Community. B) Population. C) Ecosystem. D) Biosphere. Show Answer Correct Answer: B) Population. 17. What is an example of a limiting factor that is biotic? A) Water. B) Wind. C) Grass. D) Rocks. Show Answer Correct Answer: C) Grass. 18. Human-built dams across rivers have both positive & negative effects on the environment. What effect does building dams have on environments downstream? A) A positive effect due to increasing the natural flow of nutrients. B) A negative effect due to reducing populations of non-native species. C) A negative effect due to increasing the populations of native species. D) A negative effect due to decreasing the natural flow of nutrients. Show Answer Correct Answer: D) A negative effect due to decreasing the natural flow of nutrients. 19. John Cena wanted to examine a decomposer. What would he need to see it with? A) Telescope. B) Magnifying glass. C) Microscope. D) None of above. Show Answer Correct Answer: C) Microscope. 20. Animals that can soon die out. A) Solar power. B) Dumping site. C) Sewage. D) Endangered species. Show Answer Correct Answer: D) Endangered species. ← PreviousNext →Related QuizzesScience QuizzesEcology Quiz 1Ecology Quiz 2Ecology Quiz 3Ecology Quiz 4Ecology Quiz 5Ecology Quiz 6Ecology Quiz 7Ecology Quiz 8Ecology Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books