Across
- 2. Ability to detect the environment.
- 4. An infectious agent which scientists disagree about if its alive.
- 6. Removal waste products.
- 8. An example of an excretion.
- 10. What living organisms turn food into.
- 11. Substances from which to acquire energy.
- 12. Taking air into the lungs.
Down
- 1. The changing of position.
- 3. A more descriptive term for food.
- 5. Increasing in size.
- 7. To make more of the same species.
- 9. Mold, algae, and bacteria are all...
- 13. The release of energy from a source of nutrients.