Name:____________________________________________
Flow of Energy Student Practice (2.2)
Compare and Contrast: Using some type of graphic organizer compare and contrast the following terms
1.
Autotroph/Heterotroph
2.
Food Chain/Food Web
Short Answer/Discussion:
3.
What is the ultimate source of energy of almost any terrestrial (land) food chain or food web? What process converts this energy
into a usable form?
4.
How much energy is transferred as you move from one trophic level to another?
5.
Evaluate the impact on living organisms if the Sun began to produce less energy and then finally burned out.
6.
Explain why all ecological pyramids are smaller at the top than at the bottom.
Interpreting Graphics:
7.
List two things that are missing from this diagram that should probably be included.
8.
Explain what the arrows indicate in this diagram.
Food Web
9.
Why is this food web considered a better representation of how energy is transferred than the food chain we observed early?
10. What two things are missing from this diagram?
11. How much energy is being transferred from one organism to another?
Ecological Pyramids
12. Differentiate between the three pyramids listed above.
13. What is the common theme as you move up the pyramids?
14. Describe the main source of energy for all three pyramids?
15. Explain what would happen to the biomass pyramid and pyramid of numbers if the bottom of the pyramids collapsed or died off?