This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 173 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 173 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which level of ecology is the most specific? A) Biome. B) Biosphere. C) Ecosystem. D) Community. Show Answer Correct Answer: D) Community. 2. Which biome recieves the most rainfall? A) Rainforest. B) Desert. C) Taiga. D) Tundra. Show Answer Correct Answer: A) Rainforest. 3. The best word to describe a group of microorganisms which float on water is: A) Community. B) Ecosystem. C) Food chain. D) Environment. Show Answer Correct Answer: A) Community. 4. What type of measurement is it when I take the population of one sample classroom and multiply it by the number of classrooms? A) Estimate by Sampling. B) Count every Individual. C) Mark and Recapture. D) Population Density. Show Answer Correct Answer: A) Estimate by Sampling. 5. Photosynthesis is the A) Conversion of carbon dioxide and water into sugars and oxygen by bacteria-with help of light. B) Conversion of methane gas and water into sugars and oxygen by plants-with help of light. C) Conversion of carbon dioxide and water into sugars and oxygen by plants-with little to no light. D) Conversion of carbon dioxide and water into sugars and oxygen by plants-with help of light. Show Answer Correct Answer: D) Conversion of carbon dioxide and water into sugars and oxygen by plants-with help of light. 6. Conservation is A) When you save your food. B) Wise management of natural resources, including preservation of habitats and wildlife. C) Saving water. D) None of above. Show Answer Correct Answer: B) Wise management of natural resources, including preservation of habitats and wildlife. 7. The first living things to grow successfully on a newly formed sand dune are known as A) Saprophytes. B) Carnivorous plants. C) Pioneer organisms. D) Heterotrophs. Show Answer Correct Answer: C) Pioneer organisms. 8. Self-feeding organisms are: A) Autotrophs. B) Biophages. C) Saprophages. D) Biocenoses. E) Ecosystem. Show Answer Correct Answer: A) Autotrophs. 9. Organisms that eat both meat and vegetation A) Carnivores. B) Herbivores. C) More destructive. D) Omnivores. Show Answer Correct Answer: D) Omnivores. 10. Which energy role obtain energy through photosynthesis? A) Producer. B) Consumer. C) Decoposer. D) Herbivore. Show Answer Correct Answer: A) Producer. 11. Carnivore A) Producer. B) Primary consumer. C) Secondary consumer. D) Tertiary consumer. Show Answer Correct Answer: C) Secondary consumer. 12. An animal's population decreases from 800 individuals to 600 individuals. What could explain this change in population size? A) The number of animals leaving the population has decreased. B) The number of breeding pairs in the population has increased. C) The number of species competing with the animal has decreased. D) The population of the animal's predators has increased. Show Answer Correct Answer: D) The population of the animal's predators has increased. 13. Which of the following is the highest level of organization within the environment? A) Population. B) Organism. C) Ecosystem. D) Biosphere. Show Answer Correct Answer: D) Biosphere. 14. Precipitation that contains high amounts of chemical pollutants that injures plants and pollutes the soil and rivers/oceans. A) Herbicide. B) Pesticide. C) Beach erosion. D) Acid rain. Show Answer Correct Answer: D) Acid rain. 15. If the climate in a cold region (like the Taiga) changed and the average weather patterns began to become warmer, would this affect the organisms living there? A) Yes. B) No. Show Answer Correct Answer: A) Yes. 16. All the following are decomposers except A) Worms. B) Bacteria. C) Fungi. D) Rats. Show Answer Correct Answer: D) Rats. 17. This means the amount of salt dissolved in water. A) Salinity. B) Salutation. C) Saturation. D) Saltiness. Show Answer Correct Answer: A) Salinity. 18. What all can be found in an ecosystem? A) All life on Earth. B) Only biotic factors. C) Only abiotic factors. D) Biotic and abiotic factors. Show Answer Correct Answer: D) Biotic and abiotic factors. 19. Niche is A) The place of an organisms in its habitat. B) An organisms in its habitat. C) The habitat. D) The roll of an organisms in its habitat. Show Answer Correct Answer: D) The roll of an organisms in its habitat. 20. Anything that can restrict the size of a population A) Limiting Factor. B) Carryoing Capacity. Show Answer Correct Answer: A) Limiting Factor. ← 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