Ecosystems

3. Alive
8. Length x width x height
9. Any collection of interacting parts that work together to produce or perform a function
12. An organism that eats both meat and plants
13. A community of organisms interacting with each other and with the nonliving environment
14. An organism such as plants, or algae, that makes food
16. Air
17. Top six to thirty feet of earth
18. Not alive
19. An organism that breaks down plant and animal material into simple chemicals
20. An organism that only eats meat

1. All living things
2. Microorganism that act as decomposers
4. An organism that can't make its own food. These organisms have to eat other animals
5. The feeding relationships among all the organisms in an ecosystem. Arrows show the flow of matter and energy from one organism to another
6. Water
7. Volcano that erupted in Washington state
10. Our conservationist
11. A description of the feeding relationships between organisms in an environment
15. An organism that only eats plants