This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 106 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 106 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is an example of an abiotic elements that may change an area? A) Introducing a new type of grass to the prairie. B) Water flooding a prairie. C) Two birds species competing for nest habitat. D) Uncontrollable mold growth on trees. Show Answer Correct Answer: B) Water flooding a prairie. 2. Which gas do plants release, that humans depend on for survival? A) Water. B) Carbon Dioxide. C) Oxygen. D) Sugar. Show Answer Correct Answer: C) Oxygen. 3. Which is a product of photosynthesis? A) Oxygen. B) Carbon Dioxide. C) Water. D) Nitrogen. Show Answer Correct Answer: A) Oxygen. 4. A baby song bird hatches from its egg with both parent songbirds watching. A) All living things reproduce. B) All living things maintain homeostasis. C) All living things use energy. D) All living things grow. Show Answer Correct Answer: A) All living things reproduce. 5. In the ..... zone, the process of photosynthesis cannot occur. A) Aphotic. B) Photic. C) Pelagic. D) Wetlands. Show Answer Correct Answer: A) Aphotic. 6. Ecosystems change over time, especially after disturbances, as some species die out and new species move in. A) Ecological succession. B) Primary succession. C) Ecological adaptation. D) Species diversity. Show Answer Correct Answer: A) Ecological succession. 7. Series of steps in which organisms transfer energy by eating and being eaten A) Foodweb. B) Consumer. C) Food chain. D) Omnivore. Show Answer Correct Answer: C) Food chain. 8. Which is a density-dependent factor? A) Human infrastructure (cars). B) A deadly disease. C) Wildfire. D) Severe drought. Show Answer Correct Answer: B) A deadly disease. 9. What is the defintion of an individual? A) A living thing. B) A single organism. C) All the organisms of one species in a habitat. D) All the different species living in a habitat. Show Answer Correct Answer: B) A single organism. 10. Which characteristic of water vapour classifies it as a greenhouse gas? A) It absorbs and then re-emits some of the long wave radiation emitted by the Earth's surface. B) It prevents short wave radiation from reaching the Earth's surface. C) It absorbs UV radiation but does not re-emit it. D) It absorbs infra-red radiation but does not re-emit it. Show Answer Correct Answer: A) It absorbs and then re-emits some of the long wave radiation emitted by the Earth's surface. 11. If there is more food than usual in an ecosystem, then ..... A) Populations will stay the same. B) Populations will decrease. C) Populations will increase. D) None of above. Show Answer Correct Answer: C) Populations will increase. 12. Tapeworm living inside an alpaca A) Competition. B) Mutualism. C) Parasitism. D) None of the abover. Show Answer Correct Answer: C) Parasitism. 13. ..... are composed out of carbon (C), hydrogen (H), oxygen (O), nitrogen (N), and phosphorus (P) A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: D) Nucleic Acids. 14. Choose the right meaning:bottle A) Tin. B) Trash can. C) Bottle. D) None of above. Show Answer Correct Answer: C) Bottle. 15. Which organism can best be described as a saprotroph? A) A fungus that digests its food externally and absorbs the products of digestion. B) A beetle that feeds by ingesting the dung of other animal species and digesting its food internally. C) A single-celled eukaryote that is able to photosynthesize and consumes smaller organisms by endocytosis. D) A giraffe that feeds by ingesting leaves from an acacia tree. Show Answer Correct Answer: A) A fungus that digests its food externally and absorbs the products of digestion. 16. Different birds have different beak structures. This is an example of: A) Mimicry. B) Variation. C) Instincts. D) None of above. Show Answer Correct Answer: B) Variation. 17. An organisms Niche can be defined as A) The role its plays in the ecosystem. B) It's physical and biological requirements. C) The interactions between it and other organisms. D) All of these. Show Answer Correct Answer: D) All of these. 18. Maintain A) Turn off. B) Fix. C) Look after. D) Throw. Show Answer Correct Answer: C) Look after. 19. Organisms adapted to a certain value of factors are called A) Parasites. B) Resistant. C) Weak. D) Tolerant. E) Stenobionts. Show Answer Correct Answer: D) Tolerant. 20. Superman is a A) Hero. B) House. C) Fix. D) Draw. Show Answer Correct Answer: A) Hero. ← PreviousNext →Related QuizzesEcology Quiz 1Ecology Quiz 2Ecology Quiz 3Ecology Quiz 4Ecology Quiz 5Ecology Quiz 6Ecology Quiz 7Ecology Quiz 8Ecology Quiz 9Ecology Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books