This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 239 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 239 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. First source of energy for a food web is ..... ? A) Food. B) Water. C) Sun. D) Soil. Show Answer Correct Answer: C) Sun. 2. This is the energy that moves objects. A) Cool. B) Nuclear. C) Chemical. D) Mechanical. Show Answer Correct Answer: D) Mechanical. 3. What does a Secondary Consumer eat? A) Tertiary Consumers. B) Primary Consumers. C) Producers. D) Secondary Consumers. Show Answer Correct Answer: B) Primary Consumers. 4. Which best explains why runoff is important? A) It returns water to other locations on Earth. B) It increases the chance of flooding. C) It makes evaporation occur faster. D) It increases condensation. Show Answer Correct Answer: A) It returns water to other locations on Earth. 5. The arrow in a food web shows ..... A) The sunlight. B) Which organism is eating who. C) Which organism is dying. D) The flow of energy from organism to organism. Show Answer Correct Answer: D) The flow of energy from organism to organism. 6. As buffalos walk through grass, insects become active and are seen and eaten by cowbirds. This neither harms nor benefits the buffalo. A) Commensalism. B) Parasitism. C) Mutualism. D) None of above. Show Answer Correct Answer: A) Commensalism. 7. Choose the right meaning:tin A) Tin. B) Trash can. C) Bottle. D) None of above. Show Answer Correct Answer: A) Tin. 8. Why is the sun's energy necessary for the water cycle? A) It is the heat source that turns water into vapor. B) It is the light source that turns water into vapor. C) It is the source that turns vapor into water droplets. D) None of above. Show Answer Correct Answer: A) It is the heat source that turns water into vapor. 9. A desert, rain forest, tundra and grassland are all different kinds of: A) Biomes. B) Ecosystem. C) Community. D) Biosphere. Show Answer Correct Answer: A) Biomes. 10. Which of the following is a herbivore? A) Cat. B) Human. C) Vulture. D) Horse. Show Answer Correct Answer: D) Horse. 11. All of the populations that live in one area together A) Limiting factors. B) Populations. C) Community. D) Speed limit. Show Answer Correct Answer: C) Community. 12. First species in an area, have always been there. A) Invasive species. B) Old people. C) Native species. D) Lichen. Show Answer Correct Answer: C) Native species. 13. Which method of determining population size involves counting the organisms in a smaller area and multiplying it by the entire area? A) Direct observation. B) Indirect observation. C) Sampling. D) Mark and recapture. Show Answer Correct Answer: C) Sampling. 14. Any single living thing within an ecosystem A) Organism. B) Community. C) Population. D) Biosphere. Show Answer Correct Answer: A) Organism. 15. ..... need sunlight, water, and nutrient to live. A) Plants. B) Animals. C) Bacteria. D) None of above. Show Answer Correct Answer: A) Plants. 16. All wildfires are harmful. A) True. B) False. Show Answer Correct Answer: B) False. 17. One way a population can decrease is if there is an increase in the A) Birth rate. B) Death rate. C) Immigration. D) None of above. Show Answer Correct Answer: B) Death rate. 18. All living and nonliving things in an environment and the many ways they interact are called ..... A) Ecosystem. B) Community. Show Answer Correct Answer: A) Ecosystem. 19. When an organisms' prey decreases, what most likely will happen? A) The number of prey will increase. B) The prey gets sick. C) The number of predators will also decrease. D) The number of predators will increase. Show Answer Correct Answer: C) The number of predators will also decrease. 20. Roots absorb A) Ill. B) H2o. C) O2. D) Light. Show Answer Correct Answer: B) H2o. ← 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