This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 18 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Humans are affecting the carbon cycle by A) Burning fossil fuels. B) Destroying vegetation that absorbs carbon dioxide. C) Using electrical labor-saving devices. D) All of the above. Show Answer Correct Answer: D) All of the above. 2. What does Tropic Level 4 Contain? A) Producers. B) Primary Consumers. C) Secondary Consumers. D) Tertiary Consumers. Show Answer Correct Answer: D) Tertiary Consumers. 3. Which of the following is NOT an example of a decomposer A) Fungi. B) Hawk. C) Bacteria. D) Insects. Show Answer Correct Answer: B) Hawk. 4. In addition to energy, organisms need matter to survive. Which of the following is true about matter in the biosphere? A) The total amount of matter decreases overtime. B) The total amount of matter increases overtime. C) Biogeochemical cycles transform and reuse molecules. D) Matter flows through ecosystems in one direction. Show Answer Correct Answer: C) Biogeochemical cycles transform and reuse molecules. 5. The Florida panther once occupied areas from Florida to Louisiana. It now lives only in the southwestern tip of Florida. What is the most likely cause of the decline of the Florida panther population? A) Competition for territory between panthers. B) The weakening of species due to inbreeding. C) The loss of natural habitat due to human settlement. D) The increase in the population of white-tailed deer. Show Answer Correct Answer: C) The loss of natural habitat due to human settlement. 6. An organism that breaks down dead plant and animal material. A) Decoposer. B) Autotroph. C) Heterotroph. D) Producer. Show Answer Correct Answer: A) Decoposer. 7. The recovery of a damaged ecosystem A) Secondary Succession. B) Primary Succession. C) Deforestation. D) Pioneer Species. Show Answer Correct Answer: A) Secondary Succession. 8. Which of the following is NOT a type of eukaryotic cell? A) Mushroom cell. B) Pea leaf cell. C) Bacterial cell found in Swiss cheese. D) Alligator stomach cell. Show Answer Correct Answer: C) Bacterial cell found in Swiss cheese. 9. Which of the following habitats probably has the greatest number of plant and animal species? A) The African savannah. B) A rainforest in Brazil. C) A temperate forest in China. D) A temperate grassland in Kansas. Show Answer Correct Answer: B) A rainforest in Brazil. 10. When an animal needs to get energy, it must consume another organism. This means it is a ..... A) Producer. B) Consumer. Show Answer Correct Answer: B) Consumer. 11. What is an omnivore? A) An organism that only eats plants for energy. B) An organism that eats animals for energy. C) An organism that eats both plants and animals for energy. D) None of above. Show Answer Correct Answer: C) An organism that eats both plants and animals for energy. 12. An autotroph is an organism that can: A) Make its own food by doing photosynthesis. B) Obtain energy by eating other organisms. C) Decompose other organisms to get energy. D) Spontaneously generate. Show Answer Correct Answer: A) Make its own food by doing photosynthesis. 13. The Biosphere contains all ecosystems A) True. B) False. Show Answer Correct Answer: A) True. 14. Tigers are? A) Producer. B) Primary Consumer. C) Secondary Consumer. D) Decomposers. Show Answer Correct Answer: C) Secondary Consumer. 15. Which of the following is NOT part of the carbon cycle? A) Condensation. B) Photosynthesis. C) Combustion. D) Respiration. Show Answer Correct Answer: A) Condensation. 16. Ecosystems require constant inputs of ..... from sunlight or chemicals. A) Exclusion. B) Energy. Show Answer Correct Answer: B) Energy. 17. Which of these is not an example of an organism's niche in its environment? A) Wolves keeping the population of elk balanced. B) Bees pollinating flowers. C) A snake sunning itself on a rock. D) A mosquito spreading disease among an elk population. Show Answer Correct Answer: C) A snake sunning itself on a rock. 18. Consumers- A) Green plants. B) Animals, people. C) Microorganisms. D) Viruses. Show Answer Correct Answer: B) Animals, people. 19. Fdasf A) Fdasfads. B) Trust. C) Fd. D) Fdsa. Show Answer Correct Answer: D) Fdsa. 20. First species to populate the area and eventually die adding organic material to help form soil for plants A) Pioneer species. B) Limiting factor. C) Climax community. D) None of above. Show Answer Correct Answer: A) Pioneer species. ← 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