1. The Web of Life LT: I can create and analyze a food web.

2. Create a Food Web Use the information on the cards to create a food web. Remember: arrows go from eaten to eater When everyone in your group agrees, draw the food web into your notebook.

3. Below the food web you drew, predict what would happen to the ecosystem if: 1. Pesticides gets into the water and kills the phytoplankton and zooplankton 2. Harbor seals dies off 3. Fertilizer runoff causes cyanobacteria and plankton to grow rapidly.

4. Energy Pyramid Take the organisms from the food web and put them into a an energy pyramid.

5. Analysis 1. What is the difference between the role of an organism that is a producer and one that is a consumer? How is a decomposer different from other consumers? 2. Explain the role of the sun in the marine ecosystem you drew in your notebook. 3. Describe the flow of energy in this marine ecosystem. 4.Explain why a pyramid is helpful for describing the amount of energy available in a food web.