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Energy Pyramid (Grade 9)

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Energy Pyramid

1. 
Using the image below, answer the following questions.

Energy Pyramid Without Percentages
A. 
About how much energy does a producer get from its food source?



B. 
About how much energy does a primary consumer get from its food source?



C. 
About how much energy does a secondary consumer get from its food source?



D. 
About how much energy does a tertiary consumer get from its food source?



2. 
What is an autotroph?



3. 
What is a heterotroph?



4. 
How much energy is lost at each level trophic level?



5. 
If a producer uses photosynthesis to produce 10,000 kilocalories, how much of that energy reaches a secondary consumer?



6. 
What are decomposers and what is their role?



7. 
Which shows the correct flow of energy in a food web?
  1. decomposer - tertiary consumer - primary consumer - secondary consumer - producer
  2. producer - tertiary consumer - secondary consumer - primary consumer - decomposer
  3. decomposer - producer - primary consumer - secondary consumer - tertiary consumer
  4. decomposer - primary consumer - secondary consumer - tertiary consumer - producer
  5. decomposer - producer - tertiary consumer - secondary consumer - primary consumer

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