This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 73 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 73 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Another name for consumer that means to consume other organisms A) Autotroph. B) Heterotroph. C) Producer. D) Prey. Show Answer Correct Answer: B) Heterotroph. 2. Toxins accumulate in the tissues of organisms as they pass through a food chain/web. A) Eutrophication. B) Biomagnification. C) Ecological succession. D) Symbiosis. Show Answer Correct Answer: B) Biomagnification. 3. A tick and a dog have this type of relationship. A) Mutualism. B) Commensalism. C) Neutralism. D) Parasitism. Show Answer Correct Answer: D) Parasitism. 4. Two animals living together in a close relationship A) Predator/prey. B) Symbiosis. C) Consumers. D) Producers. Show Answer Correct Answer: B) Symbiosis. 5. If the amount of predators decreases, the amount of prey animals will ..... A) Increase. B) Decrease. Show Answer Correct Answer: A) Increase. 6. What is the main function of cellular respiration? A) To get rid of ATP. B) To prevent ATP. C) To create ATP. D) None of above. Show Answer Correct Answer: C) To create ATP. 7. Meat-eaters A) Herbivore. B) Omnivore. C) Carnivore. D) None of above. Show Answer Correct Answer: C) Carnivore. 8. In a food web, which organism should have arrows pointing to it from all organisms in the food web A) Lion-apex predator. B) Plant-producer. C) Bacteria-decomposer. D) None of above. Show Answer Correct Answer: C) Bacteria-decomposer. 9. All the different populations that live together in an area is called a A) Biome. B) Ecosystem. C) Community. D) Biosphere. Show Answer Correct Answer: B) Ecosystem. 10. A chimpanzee eats fruits, nuts, leaves, and small mammals. What kind of organism is a chimpanzee? A) Carnivore. B) Decoposer. C) Producer. D) Omnivore. Show Answer Correct Answer: D) Omnivore. 11. Choose the correct sequence for energy flow within an ecosystem A) Herbivores $\rightarrow$ producers $\rightarrow$ carnivores $\rightarrow$ scavengers. B) Producers $\rightarrow$ herbivores $\rightarrow$ carnivores $\rightarrow$ scavengers. C) Producers $\rightarrow$ carnivores $\rightarrow$ herbivores $\rightarrow$ scavengers. D) Carnivores $\rightarrow$ scavengers $\rightarrow$ herbivores $\rightarrow$ producers. Show Answer Correct Answer: B) Producers $\rightarrow$ herbivores $\rightarrow$ carnivores $\rightarrow$ scavengers. 12. Chemical laboratory A) Chemical reaction. B) Chemical nomenclature. C) Chemistry laboratory. D) Chemical analysis. Show Answer Correct Answer: C) Chemistry laboratory. 13. An energy pyramid gets smaller at the top because: A) No energy is lost as you move up the food chain. B) There are more consumers than producers. C) The amount of energy decreases as you move up the food chain. D) It takes more plants to feed a rabbit than it does to feed a bear. Show Answer Correct Answer: C) The amount of energy decreases as you move up the food chain. 14. Living parts of an ecosystem are called ..... Examples include plants, animals, fungi, bacteria, and protists like algae. A) Biotic factors. B) Abiotic factors. C) Crazy critters. D) Animals and plants. Show Answer Correct Answer: A) Biotic factors. 15. A biome is defined by its A) Elevation and soil. B) Plant and animal species. C) Latitude and longitude. D) Climate and plant life. Show Answer Correct Answer: D) Climate and plant life. 16. Acid rain has a pH LESS than A) 6. B) 7. C) 8. D) 3. Show Answer Correct Answer: A) 6. 17. How do animals contribute to the amount of atmospheric carbon? A) Not at all. B) Photosynthesis. C) Respiration. D) None of above. Show Answer Correct Answer: C) Respiration. 18. What is the relationship between two variables? A) Positive correlation. B) Negative correlation. C) No correlation. D) None. Show Answer Correct Answer: B) Negative correlation. 19. Place the levels of environment in the correct order. A) Biome, biosphere, population, organism, ecosystem, community. B) Organism, ecosystem, biosphere, population, community, biome. C) Organism, population, community, ecosystem, biome, biosphere. D) Population, community, organism, biome, ecosystem, biosphere. Show Answer Correct Answer: C) Organism, population, community, ecosystem, biome, biosphere. 20. A relationship where one organism benefits and one organism is unaffected is called ..... A) Mutualism. B) Commensalism. C) Parasitism. D) None of above. Show Answer Correct Answer: B) Commensalism. ← 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