Across
- 1. dissolving food in the body
- 4. hormones system
- 5. muscles fibers and tissues
- 8. shy
- 10. breeding
- 11. part of the immune system, and complementary to the circulatory system.
Down
- 2. outermost layer of the human body
- 3. bones, tissues, ligaments,
- 6. breathing, gas exchange
- 7. radio---cular
- 9. peeing