Story: Blue green algae are a kind of bacteria found in many lakes. These organisms make their own food through photosynthesis. Small animals including mayfly larvae eat the blue green algae Small fish such as yellow perch eat the mayfly larvae. The small fish provide food for larger fish such as walleye. Question: Describe a model you could use to show the transfer of energy within the lake ecosystem. In your description make sure you include the position of each organism identified in the paragraph. Include the blue green algae, mayfly larvae, yellow perch, and the walleye.