This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 211 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 211 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When species do not have the traits necessary to survive, what can happen to them? A) Fossils. B) Extinction. C) Evolution. D) Adaptation. Show Answer Correct Answer: B) Extinction. 2. A species that supports an entire ecosystem. A) Keystone Species. B) Herbivores. C) Umbrella Species. D) Predators. Show Answer Correct Answer: A) Keystone Species. 3. Example of a decomposer A) Fungus. B) Mouse. C) Plants. D) Frogs. Show Answer Correct Answer: A) Fungus. 4. Eats anything A) Generalist. B) Specialist. C) Carnivore. D) Herbivore. Show Answer Correct Answer: A) Generalist. 5. If a population has reached the largest number of individuals the environment can support and maintain for a long period of time, then it has reached its: A) Limiting factor. B) Carrying Capacity. C) Community. D) Biomagnification. Show Answer Correct Answer: B) Carrying Capacity. 6. The photic zone A) Extends to the bottom of the open ocean. B) Is the layer where light is available for photosynthesis. C) Is deep, cold, and permanently dark. D) Is where chemosynthetic bacteria are the producers. Show Answer Correct Answer: B) Is the layer where light is available for photosynthesis. 7. What is an example of an abiotic factor? A) Plants. B) Rocks. C) Grass. D) Grasshopper. Show Answer Correct Answer: B) Rocks. 8. Biomes are deturmend by what 3 things A) Temperture, rain fall, and adaptions. B) Climate weather adaptions. C) Temperture, weather, snow. D) Snow, rain, sand. Show Answer Correct Answer: A) Temperture, rain fall, and adaptions. 9. Noah, Lily, and Aria are studying the flow of energy in an ecosystem for their science project. They are trying to represent it in a complex way that includes crossover. What method should they use? A) Energy circle. B) Food web. C) Food chain. D) Energy chain. Show Answer Correct Answer: B) Food web. 10. Dirty water, polluting rivers. A) Serviceage. B) Sewage. C) I'm sorry. D) We're sorry. Show Answer Correct Answer: B) Sewage. 11. A factor that determines whether a population thrives or declines is called A) Carrying capacity. B) Factors. C) Limiting factors. D) None of above. Show Answer Correct Answer: C) Limiting factors. 12. The most important factor in converting nitrogen into usable forms during the nitrogen cycle is ..... A) Animals. B) Plants. C) Bacteria. D) Decomposers. Show Answer Correct Answer: C) Bacteria. 13. A relationship where both organisms benefit is called ..... A) Mutualism. B) Commensalism. C) Parasitism. D) None of above. Show Answer Correct Answer: A) Mutualism. 14. Food web and Food chain are the same thing A) True. B) False. Show Answer Correct Answer: B) False. 15. Eats BOTH producers (plants) and consumers (other animals) A) Omnivore. B) Carnivore. C) Herbivore. D) None of above. Show Answer Correct Answer: A) Omnivore. 16. Bird & Tree:A bird builds a nest in a hole in the trunk of the tree. It is protected from the rain and predators. The tree is not harmed or helped by the bird. A) Mutualism. B) Commensalism. C) Parasitism. D) None of above. Show Answer Correct Answer: B) Commensalism. 17. Plankton that make food by photosynthesis are called what? A) Krill. B) Zooplankton. C) Phytoplankton. D) Plankton. Show Answer Correct Answer: C) Phytoplankton. 18. Much A) Always. B) A lot of. C) Suddenly. D) Finally. Show Answer Correct Answer: B) A lot of. 19. Most common greenhouse gases are A) Carbon dioxide. B) Nitrogen. C) Oxygen. D) Sulphur. Show Answer Correct Answer: A) Carbon dioxide. 20. What will happen to the population when the death rate is larger than the birth rate? A) Grow. B) Shrink. C) Stay the same. D) None of these. Show Answer Correct Answer: B) Shrink. ← 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