This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 224 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 224 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The group that organisms live in within their ecosystem A) Population. B) Community. C) Biome. D) Biosphere. Show Answer Correct Answer: A) Population. 2. If farmers use a controlled burn to prevent forest fires, what would most likely be the first plants to return? A) Trees. B) Shrubs. C) Mosses. D) Grasses. Show Answer Correct Answer: D) Grasses. 3. About how much percent of energy is passed on from one organism to to the next on a food web pyramid. A) 100 percent of all energy gets passed. B) 45 percent of all energy gets passed. C) 10 percent of all energy gets passed. D) 0 percent of all energy gets passed. Show Answer Correct Answer: C) 10 percent of all energy gets passed. 4. What does ecosystem mean? A) Relationships between creatures living on the same continent with the same area conditions. B) The relationship between nature and living things in various habitats. C) The relationship of living things in their habitats at a certain place. D) Relationships of living things in the forest. Show Answer Correct Answer: C) The relationship of living things in their habitats at a certain place. 5. Which of the following populations is most likely to go extinct? A) A very small population in a non-diverse environment. B) A moderate-sized population in a non-diverse environment. C) A large population in a diverse environment. D) All would be equally likely to go extinct. Show Answer Correct Answer: A) A very small population in a non-diverse environment. 6. Organisms that do not decompose can be buried over LONG periods of time and become what? A) Water. B) Nutrients. C) Air. D) Fossil fuels. Show Answer Correct Answer: D) Fossil fuels. 7. The Amazon rainforest produces 20% of the world ..... A) Sewage. B) Pollution. C) Oxygen. D) Environment. Show Answer Correct Answer: C) Oxygen. 8. All steps in a food chain always involve a loss of ..... A) Light. B) Mass. C) Time. D) Energy. Show Answer Correct Answer: D) Energy. 9. Humans are omnivores. This means that A) Humans can only eat plant based foods. B) Humans are at the top of the food chain. C) Humans are only capable of digesting other animal products. D) Humans eat both meat and plants. Show Answer Correct Answer: D) Humans eat both meat and plants. 10. Steve is bored and goes outside. He sees a spider with a fly in its net, preparing to eat it. This is an example of ..... A) What you should not do in your free time. B) Predation. C) Parasitism. D) Symbiosis. E) Yummy food. Show Answer Correct Answer: B) Predation. 11. The breakdown of the remains of dead organisms or animals wastes. A) Fossil Fuel. B) Combustion. C) Consumption. D) Decomposition. Show Answer Correct Answer: D) Decomposition. 12. An herbivore is A) A group or organisms that have the same climate. B) An organism that obtains energy by eating animals. C) An organism that obtains energy by eating plants. D) An organism that obtains energy by eating grass. Show Answer Correct Answer: C) An organism that obtains energy by eating plants. 13. What process describes how plants use air, water, and energy from the Sun to make their own food? A) Condensation. B) Evaporation. C) Photosynthesis. D) Weathering. Show Answer Correct Answer: C) Photosynthesis. 14. Which of the following shows the levels of organization from smallest to largest? A) Organism-Population-Community-Ecosystem-Biome-Biosphere. B) Biosphere-Organism-Biome-Population-Ecosystem-Community. C) Community-Ecosystem-Biome-Organism-Population-Biosphere. D) Organism-Community-Ecosystem-Population-Biosphere-Biome. Show Answer Correct Answer: A) Organism-Population-Community-Ecosystem-Biome-Biosphere. 15. A place where an animal lives is called a A) Population. B) House. C) Community. D) Habitat. Show Answer Correct Answer: D) Habitat. 16. The competitive exclusion principle states that two species with similar needs A) Cannot exist in the same place. B) Need each other. C) Benefit each other. D) Always fight to the death. Show Answer Correct Answer: A) Cannot exist in the same place. 17. Pharmaceutical A) Pharmaceutical. B) Anatomy. C) Analytical chemistry. D) Inorganic chemistry. Show Answer Correct Answer: A) Pharmaceutical. 18. Fumes A) Unleaded petrol. B) Greenhouse gases. C) Exhaust fumes. D) Carbon dioxide. Show Answer Correct Answer: C) Exhaust fumes. 19. The feeding relationship between a producer and a single chain of consumers in an ecosystem A) Energy pyramid. B) Food web. C) Food chain. D) Cycle. Show Answer Correct Answer: C) Food chain. 20. Consists of all the biotic and abiotic factors of the environment ..... A) Population. B) Community. C) Ecosystem. D) All of the above. Show Answer Correct Answer: C) Ecosystem. ← 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