Across
- 2. collects,process,responds sensory info.
- 3. defends,deflect and destroy infections
- 5. barrier that protects the body.
- 6. gas exchange between oxygen/carbon dioxide
- 10. gas exchange and nutrient transport
- 11. studies the functions
- 12. studies the structure
Down
- 1. provides movement and stabilization
- 4. allows to reproduce
- 7. production of hormones for regulation
- 8. its main function is to give support
- 9. maintains water balance