Across
- 4. defends against pathogens
- 9. eliminates liquid waste
- 11. gas exchange
- 12. attaches to muscles for movement; stores minerals and produces blood cells
- 13. attaches to bones and helps with movement
- 14. gland that secretes insulin for glucose regulation
- 15. intestines
- 16. skin
Down
- 1. produces hormones to regulate growth, metabolism, and development
- 2. group of cells working together
- 3. organ that filters blood
- 5. signals responses to changes in the environment
- 6. group of tissues working together
- 7. basic unit of living things
- 8. transports gases, nutrients, and wastes around the body
- 10. produces gametes for priding offspring