Across
- 2. the maintenance of a constant internal state in a changing environment
- 4. not under your control
- 6. exercise strengthens your skeletal muscles
- 8. cells filled with protein
- 9. deposited by living cells
- 13. fibers mad of a protein
Down
- 1. disease that cause bone to become less dense
- 2. body temperature falls below normal condition
- 3. muscle that straightens part of your body
- 5. fibers carry messages to and from the brain
- 7. glands release oil that keeps har flexible and waterproofs the epidermis
- 10. tendon inflamed
- 11. system organs work together
- 12. bones store minerals that help your nerves ans muscles function properly. long bones store fat that can be used for energy.