Across
- 2. What systems main function is gas exchange?
- 8. What system helps animals make babies.
- 9. What system has key structures as skin, nails and hair?
- 10. What is the study of bodily functions?
Down
- 1. What is also known as the circulatory system?
- 3. What systems main function is production and secretion?
- 4. What is the study of bodily structures?
- 5. What systems main functions are movement and stabilization?
- 6. What systems key structures include the brain and spinal cord?
- 7. What system protects the organs?