1. Energy Flows Through Ecosystems Sun: Makes all energy on Earth. Producers: Make their own food. Consumers: Get their food by eating other organisms. Decomposers: Organisms that break down dead plant and animal matter.

2. Consumers Herbivore: Animal that eat only plants. Carnivore: Animal that eats only MEAT. Omnivore: Animal that eats both plants and meat.

3. Decomposers An organism that feeds on and breaks down dead plant or animal matter.

4. Food Chain A model used to show the feeding relationship between a single producer and a chain of consumers in an ecosystem. Producer-Consumer- Decomposer

6. Food Web A model used to show a feeding relationship in which many food chains overlap in an ecosystem.

8. Energy Pyramid A model used to show the amount of energy available to living things in an ecosystem.

9. Energy Pyramid