This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 179 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 179 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Competition is when ..... A) Two animals compete for resources. B) Two animals share resources. C) A group of animals protect each other. D) When one animal benefits while the other suffers. Show Answer Correct Answer: A) Two animals compete for resources. 2. Why are some sharks considered a keystone species? A) Because they are a top predator. B) They scare off smaller fish that may overgraze an area of sea grass. C) They are tertiary consumers. D) They are cartilaginous. Show Answer Correct Answer: B) They scare off smaller fish that may overgraze an area of sea grass. 3. Modern technology has resulted in the production and use of insecticides. Which statement is a false description of insecticides? A) Insecticides can affect food chains. B) Insecticides can cause pollution. C) Insecticides improve yields. D) Insecticides target weeds. Show Answer Correct Answer: D) Insecticides target weeds. 4. Energy flows in A) One direction from consumer to producers. B) One directions from producers to consumers. C) Many different directions. D) None of above. Show Answer Correct Answer: B) One directions from producers to consumers. 5. Which of the following is an example of predation? A) Lion and wildebeast. B) Human and pinworm. C) Humpback whale and barnacle. D) Ant and bull horn. Show Answer Correct Answer: A) Lion and wildebeast. 6. The scientific study of interactions between organisms and their environments A) Biology. B) Ecology. C) Astronomy. D) Geology. Show Answer Correct Answer: B) Ecology. 7. An ecological risk of damming a river could be: A) Preventing fish from reaching spawning grounds. B) Loss of revenue for a canoe rental business. C) Generating electricity to supply power to homes. D) Creation of a lake that is good for sailboat enthusiasts. E) Better habitat for birds such as ducks and pelicans. Show Answer Correct Answer: A) Preventing fish from reaching spawning grounds. 8. Consider the following food chain:Algae > Mayfly > Minnow > TroutIn a polluted ecosystem, which organism would likely have the HIGHEST level of toxic chemicals in its body? A) Algae. B) Mayfly. C) Minnow. D) Trout. Show Answer Correct Answer: D) Trout. 9. Please ..... the light in the classroom A) Turn of. B) Turn off. C) Put on. D) Clean. Show Answer Correct Answer: B) Turn off. 10. A series of events that happens over and over again A) Food chain. B) Respiration. C) Transpiration. D) Cycle. Show Answer Correct Answer: D) Cycle. 11. What is the process by which plants get energy from the sun and convert it into oxygen and food for themselves? A) Photography. B) Photosynthesis. C) Chemosynthesis. D) Photoelectric effect. Show Answer Correct Answer: B) Photosynthesis. 12. An organism that makes its own food is NOT called a heterotroph but an ..... A) Transformer. B) Autotroph. C) Consumer. D) Producer. Show Answer Correct Answer: B) Autotroph. 13. This type of organism breaks down dead organic material. A) Carnivore. B) Omnivore. C) Deritivore. D) Decomposer. Show Answer Correct Answer: D) Decomposer. 14. The place an organism lives is called its A) Niche. B) Ecosystem. C) Habitat. D) Population. Show Answer Correct Answer: C) Habitat. 15. Which Disney movie mentions ecosystems A) Beauty and the Beast. B) Aladdin. C) Little Mermaid. D) Lion King. Show Answer Correct Answer: D) Lion King. 16. Parasitism is a relationship where: A) Both species are benefited. B) Both species are harmed. C) One species is benefited and the other is harmed. D) One species is benefited and the other is unaffected. Show Answer Correct Answer: C) One species is benefited and the other is harmed. 17. Producers such as plants and some bacteria are able to make their own food, so they can also be called ..... A) Autotrophs. B) Heterotrophs. C) Chloroplasts. D) Joules. Show Answer Correct Answer: A) Autotrophs. 18. What is the primary source of energy for all ecosystems? A) Plants. B) Animals. C) The water. D) The sun. Show Answer Correct Answer: D) The sun. 19. Organisms that feed on both living producers and other consumers. A) Carnivores. B) Omnivores. C) Herbivores. D) More destructive. Show Answer Correct Answer: B) Omnivores. 20. An organism's movement INTO an ecosystem is A) Emigration. B) Stability. C) Decline. D) Immigration. Show Answer Correct Answer: D) Immigration. ← 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