This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 240 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 240 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which example below is parasitism? A) Sea anemone and clownfish. B) Tick biting a dog for its blood. C) An owl living in a hole in a tree. D) None of above. Show Answer Correct Answer: B) Tick biting a dog for its blood. 2. Life cycle A) The cycle of photosysnthesis. B) Series of changes in the life of an organism. Show Answer Correct Answer: B) Series of changes in the life of an organism. 3. Lichens help to break up newly formed igneous rock that will eventually form soil. Lichens are ..... A) Limiting Factors. B) Producers. C) Pioneer Species. D) Consumers. Show Answer Correct Answer: C) Pioneer Species. 4. It is the study of interactions of microorganisms with the environment, each other, plants, and animals. A) Microbial Ecology. B) Microbial Ecology. C) Organism Ecology. D) Microorganism study. Show Answer Correct Answer: A) Microbial Ecology. 5. Water moving through plants and back into the atmosphere. A) Transpiration. B) Precipitation. C) Condensation. D) Perspiration. Show Answer Correct Answer: A) Transpiration. 6. Organisms that survive in extreme conditions are called: A) Hardophiles. B) Extremophiles. C) Non-living. D) Thermochromatic. Show Answer Correct Answer: B) Extremophiles. 7. What is compost? A) Fertilizer. B) Plant material. C) Organic materials turn to soil. D) Food. Show Answer Correct Answer: C) Organic materials turn to soil. 8. We can say that ecology..... A) E. B) A. C) C. D) I. Show Answer Correct Answer: B) A. 9. One solution for reducing the amount of atmospheric carbon dioxide would be to A) Increase oceanic temperatures to enhance carbon dioxide uptake. B) Increase the rate of removal of tropical rain forests. C) Decrease the total area of rice paddies. D) Decrease the use of fossil fuels. Show Answer Correct Answer: D) Decrease the use of fossil fuels. 10. What is an example of an abiotic habitat? A) A big dinosaur. B) A virus. C) Outer space. D) A lake. Show Answer Correct Answer: D) A lake. 11. Which term refers to the study of organisms and their interactions within the environment? A) Biosphere. B) Niche. C) Ecology. D) Habitat. Show Answer Correct Answer: C) Ecology. 12. ..... biodiversity ecosystems have many different species of organisms. A) High. B) Low. Show Answer Correct Answer: A) High. 13. What is meant by structural adaptations? A) These are ways that organisms behave. B) These are things that go on inside an organism's body. C) There are no such things as structural adaptations. D) These are features of an organism's body structure. Show Answer Correct Answer: D) These are features of an organism's body structure. 14. All the energy in an ecosystem comes from the ..... A) Plants. B) Sun. C) Animals. D) Oil. Show Answer Correct Answer: B) Sun. 15. A species, that if removed, would cause a major change in the ecosystem is a ..... A) Hybrid Species. B) Dominant Species. C) Keystone Species. D) Native Species. Show Answer Correct Answer: C) Keystone Species. 16. How much energy is available at the next trophic level? A) 20%. B) 90%. C) 10%. D) 0%. Show Answer Correct Answer: C) 10%. 17. A secondary consumer that eats a primary consumer is called A) Omnivore. B) Carnivore. C) Herbivore. D) Decoposer. Show Answer Correct Answer: B) Carnivore. 18. Variety of life in the world or in a particular habitat or ecosystem. A) Biodiversity. B) Limiting Factor. C) Niche. D) Trophic Level. Show Answer Correct Answer: A) Biodiversity. 19. Indirect observation A) Count each and every individualdifficult to do. B) Observe the signs of orgamismsestimation. C) Approximation based on reasonable assumptioncount number in small area and multiply for larger areas. D) Catch and mark an organism, release, and catch more at a later timeuse a mathematical formula to estimate a total population. Show Answer Correct Answer: B) Observe the signs of orgamismsestimation. 20. Mold is a A) Producer. B) Consumer. C) Decoposer. D) None of above. Show Answer Correct Answer: C) Decoposer. ← 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