Across
- 4. gas exchange taking in oxygen and getting rid of carbon dioxide
- 6. allows animals to reproduce
- 8. gas exchange and nutrient transport to and from cells throughout the body
- 10. break down of food and absorption of nutrients for the body
- 11. key structure part of skeletal system
- 12. acts as a barrier to protect the body from the outside world
Down
- 1. support protection for internal organs aid in movement
- 2. movement and stabilization
- 3. maintains water balance gets rid of waste
- 5. collect,process and control sensory information
- 7. production and secretion of hormones for regulation of body
- 9. defend deflect and destroy infectious agents that make their way into body