This quiz works best with JavaScript enabled. Home > Science > Ecology β Quiz 35 π Homepage π Download PDF Books π Premium PDF Books Ecology Quiz 35 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The change in community structure over time is called ..... A) Ecological niche. B) Population. C) Biodiversity. D) Succession. Show Answer Correct Answer: D) Succession. 2. Organisms that only eat consumers A) Herbivores. B) Carnivores. C) Scavengers. D) Omnivores. Show Answer Correct Answer: B) Carnivores. 3. Which group of organisms in an ecosystem fills the niche of recycling organic matter back to the environment? A) Decomposers. B) Producers. C) Predators. D) Carnivores. Show Answer Correct Answer: A) Decomposers. 4. Precipitation that falls on land and ο¬ows over the surface of the ground A) Runoff. B) Reservoir. Show Answer Correct Answer: A) Runoff. 5. Series of changes that occur in an area where the ecosystem has been disturbed but soil and organisms still exist A) Primary succession. B) Secondary succession. Show Answer Correct Answer: B) Secondary succession. 6. What don't we need to recycle? A) Bottles. B) Paper. C) Tin. D) Food. Show Answer Correct Answer: D) Food. 7. Humans are causing extiction in which ways? A) By over hunting animals for food or products. B) By destroying the natural habitat of species. C) By polluting the environments of the world. D) All of the above. Show Answer Correct Answer: D) All of the above. 8. You should take ..... showers. A) Long. B) Cold. C) Short. D) Save. Show Answer Correct Answer: C) Short. 9. A relationship between two organisms in which one organism benefits and the other is harmed. A) Mutualism. B) Competition. C) Parasitism. D) Commensalism. Show Answer Correct Answer: C) Parasitism. 10. An organism that helps to recycle nutrients within an ecosystem by eating dead or decaying organisms is a: A) Predator. B) Producer. C) Autotroph. D) Decoposer. Show Answer Correct Answer: D) Decoposer. 11. Is dust arriving from the desert considered an air pollutant? A) Yes, because desert dust is composed of particles that cause harm to health. B) No, because the desert lacks significant human activity. C) Yes, because desert dust is composed of toxic substances. D) No, because dust is natural. Show Answer Correct Answer: A) Yes, because desert dust is composed of particles that cause harm to health. 12. Vines grow on a tree. The vines get light but the tree is not affected. What kind of relationship is this? A) Commensalism. B) Mutualism. C) Parasitism. D) None of above. Show Answer Correct Answer: A) Commensalism. 13. Who introduced the term biogecenosis? A) E. Suess. B) N. Vavilov. C) Sukachev. D) MΓΆbius. E) Vernadsky. Show Answer Correct Answer: C) Sukachev. 14. What is a watershed? A) Network of streams leading to a larger river. B) Network of rivers and bays that lead to the ocean. C) Reservoir of water stored underground. D) Area of land that drains to a body of water. Show Answer Correct Answer: D) Area of land that drains to a body of water. 15. Which biome receives less than 25 centimeters of rain per year? A) Desert. B) Temperate rainforest. C) Grassland. D) Tropical rainforest. Show Answer Correct Answer: A) Desert. 16. Mimicry is A) An animal's color and pattern that helps it blend in with its surroundings. B) Animal body parts or physical features. C) When an animal looks like another animal or plant. D) Movement of one group of one type of animal from one region to another and back again. Show Answer Correct Answer: C) When an animal looks like another animal or plant. 17. Diagram of transfer of energy A) Ecology. B) Food web. C) Decoposer. D) Producer. Show Answer Correct Answer: B) Food web. 18. The process by which populations of organisms with variations that help them to survive in their environments, live longer, outcompete, and reproduce more organisms with the same variation A) Natural selection. B) Variations. C) Competition. D) Camouflage. Show Answer Correct Answer: A) Natural selection. 19. What is precipitation? A) Sweat from our bodies on hot days. B) Warm rain but not cold snow or sleet. C) Gas that we use in furnaces or ovens. D) Any form of water that falls from the sky. Show Answer Correct Answer: D) Any form of water that falls from the sky. 20. Which of the following BEST describes an ecological niche? A) Relationship between the species and other organisms in the habitat. B) Functional role that the organism plays in its habitat. C) Habitat that provides food for the organism. D) Habitat that provides the most suitable environmental conditions for the organism. Show Answer Correct Answer: B) Functional role that the organism plays in its habitat. β PreviousNext βRelated QuizzesEcology Quiz 1Ecology Quiz 2Ecology Quiz 3Ecology Quiz 4Ecology Quiz 5Ecology Quiz 6Ecology Quiz 7Ecology Quiz 8Ecology Quiz 9Ecology Quiz 10 π Back to Homepage π Download PDF Books π Premium PDF Books