Across
- 3. an organism, especially a soil bacterium, fungus, or invertebrate, that breaks down organic material
- 5. Anything that has mass and takes up space
- 10. dioxide made up of one carbon atom and two oxygen atoms.
- 11. A biological community of interacting organisms and their physical environment
- 12. organisms that make their own food
Down
- 1. Factors that are living
- 2. An individual animal, plant, or single-celled life form
- 4. what we need to survive
- 6. organisms that need to eat food to obtain their energy
- 7. factors that aren't living
- 8. may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other forms.
- 9. consists of all the food chains in a single ecosystem