CLASS COPY – ANSWER QUESTIONS IN YOUR INB 
         
               Ecology Chapter 1 Section 3 Reading Guide  
         
               Either write the question or restate the question in your answer.  
         
               1.Besides matter, what else do living organisms move through ecosystems? Explain your 
               answer.  
               2.Using a double-bubble map: Compare and contrast photosynthesis and 
               chemosynthesis.  
               3.Complete the following sentences:          
               a. Primary consumers eat__________________.         
               b. Secondary consumers eat________________.  
               c. Tertiary consumers eat___________________.  
               d. _______________________eat dead animals.  
                
               4. Draw a picture of a producer, consumer and decomposer.  
                
               5. What 2 models do scientists use to describe how energy moves through ecosystems?  
         
                
               6. Think of a ecosystem you have observed. Draw a picture of a food chain in that 
               ecosystem.  
         
               7. What is food web? Why is it usually a better model of interactions than a food chain?  
         
               8. Think of an energy pyramid. There is more energy at the bottom of the pyramid than 
               at the top. Why does the amount of energy change along the pyramid?