Energy Flow Questions
1. Using the spruce ­ deer ­ wolf food chain, explain the factors that account for the loss of energy between the different trophic levels.
2. Create a pyramid of numbers, given the following information: 75000 blades of grass, 7500 beetles, 750 sparrows, 75 snakes, 7 hawks. 3. Create a pyramid of energy based on the following information: Grass captures 67000 kJ of energy from the Sun. Rabbits eat the grass, and snakes eat the rabbits. The wolf, which preys on rabbits and snakes, is the top carnivore. 4. Using the Energy pyramid in the note (flower­grasshopper­mouse­snake) explain why there needs to be a larger number of flowers then snakes for the ecosystem to be sustainable. Use the ten percent rule to help explain your answer.
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