Pre-AP Biology: Unit 1 – Ecological Systems Question 1: What is the original source of almost all energy in most ecosystems? A. B. C. D. Carbohydrates Water Sunlight Carbon Question 2: What level in all ecosystems Autotrophs make up? A. B. C. D. First Second Third Fourth Question 3: Which symbiosis is this? A. B. C. D. Mutualism Parasitism Commensalism Nonalism Question 4: What do you call a living relationship between two species in which one organism is harmed? A. B. C. D. Mutualism Parasitism Commensalism Niche Question 5: What do you call an animal that gets food from killing and eating other animals? A. B. C. D. Herbivore Autotroph Producer Carnivore Question 6: What do you call an illustration that uses arrows to show the many possible directions in which matter and energy can pass through the organisms in an ecosystem? A. B. C. D. Food Chain Food Web Energy Pyramid Succession Map Question 7: Which of the following is the nonliving factors of an ecosystem? A. B. C. D. Producer Biotic Abiotic Niche Question 8: Which of the following is the living factors of an ecosystem? A. B. C. D. Producer Biotic Abiotic Niche Question 9: Which of the following is not a biotic factor? A. B. C. D. Rain Animals Plants Fungi Question 10: Which of the following is an abiotic factor? A. B. C. D. Animals Plants Fungi Minerals Question 11: A collection of organisms that belong to different populations but all live in the same area and interact with one another is called? A. B. C. D. Community Population Ecosystem Ecosphere Question 12: What do you call a symbiotic relationship in which both organisms benefit? A. B. C. D. Competition Mutualism Nitrogen Fixation Energy Pyramid Question 13: What do you call an organism that can capture energy from the sun to create their own food? A. B. C. D. Producers Detritivores Consumers Carnivores Question 14: What do you call an organism that feed on both living producers and other consumers? A. B. C. D. Carnivores Herbivores Omnivores Detritivores Question 15: What is an example of a community? A. B. C. D. Dogs A dog A dog in a doghouse Dogs and Cats Question 16: Which of the following is another word for consumer? A. B. C. D. Heterotroph Herbivore Autotroph Carnivore Question 17: What are organisms that get their energy by breaking down dead organisms and are responsible for returning nutrients to the soil? A. B. C. D. Autotroph Scavengers Decomposers Carnivores Question 18: Which is the 2nd level consumer? Plant -> Grasshopper -> Bird -> Snake ->Owl A. B. C. D. Grasshopper Bird Plant Snake Question 19: What is the term(s) for an organism to blend in with the surroundings? A. B. C. D. Warning Colors False Colors Camouflage True Colors KEY ANSWERS: 1. C 2. A 3. B 4. B 5. D 6. B 7. C 8. B 9. A 10. D 11. A 12. B 13. A 14. C 15. D 16. A 17. C 18. B 19. C