OPEN ENDED QUESTIONS (20 points) I. Look at this food chain and answer the following questions. 1. What does the arrow mean in a food chain? __________________________ 2. Name the producer in the food chain. __________________________________ 3. Name the third trophic level in the food chain. __________________________ 4. Name the tertiary consumer in the food chain. _____________________ 5. What is the ultimate source of energy that drives the food chain? __________ II. Look at these food chains. Use the food chains to help you fill in the arrows on this food web. One has been added for you. Use the food web to help you answer these questions. 6. Name the producer in this food web. _____________________ 7. Name a consumer in this food web. _____________________ 8. What eats rabbits? _____________________ 9. What does a fox eat? _____________________ III. Look at this food web. Then answer the questions. 10. Name two producers in the food web. _____________________ 11. Name three consumers in the food web. _____________________ 12. Write a food chain from this food web with six trophic levels. __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ 13. Name the animals that the small fish eats. _____________________ 14. Name the animals that eat the small fish. _____________________ 15. Explain what could happen to the community if all the frogs suddenly died. _____________________ 16. How are food webs different to food chains? Explain why food webs are more useful. _____________________________________________________________ _____________________________________________________________ 17-20. Construct a food chain. Label the producer, primary consumer, secondary consumer, and tertiary consumer. An owl eats a snake, the snake eats a squirrel, the squirrel ate a nut. 2