Across
- 1. excersie/strengthens your skeletal muscles
- 4. system/organs work together
- 5. filled with protein
- 8. by living cells
- 11. temperature falls below normal condition
- 12. fibers/carry messages to and from the brain
- 13. under your control
Down
- 2. stre minerals that help your nerves ans muscles function properly. Long bones store fat that can be used for energy.
- 3. mad of a protein
- 6. that straightens part of your body
- 7. inflamed
- 8. that cause bone to become less dense
- 9. glands/release oil that keeps har flexible and waterproofs the epidermis
- 10. maintence of a constant internal state in a changing environment