Across
- 3. chemical produced by glands of the endocrine system
- 4. the place where two bones meet
- 8. all the bones in the body
- 9. organ system that supports and protect the body and allows movement.
Down
- 1. process by which nutrients move into the blood stream
- 2. the maintenance of a constant internal state in a changing environment
- 5. the body’s reaction to a signal in the environment
- 6. endocrine system structure that produces chemicals that affect body processes
- 7. substance gotten from food that is needed by body cells
- 10. signal in the environment that causes the body react