Across
- 3. all the species that live in a community
- 5. Mold and yeast are types of?
- 9. responsible for providing the body with energy
- 11. needed for general health and growth
- 12. responsible for building and repairing muscles
Down
- 1. the bottom two chambers of the heart
- 2. the top two chambers of the heart
- 4. the start of a food chain
- 6. takes blood away from the heart
- 7. a tiny organism that can cause disease
- 8. blood vessel that takes blood to the heart
- 10. non-living factors that can affect an environment