Ecosystems and Food Webs

1. Define "trophic level" and give an example of an organism from the video that occupies each of the following trophic levels: producer, primary consumer, secondary consumer, and tertiary consumer.

2. Explain the difference between a food chain and a food web. Why are food webs a more accurate representation of energy flow in an ecosystem?

3. Draw a simple food web containing at least four different organisms. Identify one producer, one primary consumer, one secondary consumer, and one top predator in your food web. Use arrows to show the direction of energy flow.