chapter 11

3. group of tissues that work together
7. chemical signals released by endocrine system
9. signal in the environment that makes you react
10. organs in the endocrine system that releases chemical signals directly into bloodstream
13. tissue that covers the surfaces of our body, inside and out
14. connective tissue that holds bones together at joints
17. condition in which bones become weak and break easily
19. tissue that provides support and connects
21. type of muscle that lines internal organs

1. place where 2 bones meet
2. tissue that carries out motion
4. directs the cell's activities
5. group of similar cells that from the same function
6. basic unit of structure and function in a living thing
8. reaction to stimulus
9. type of muscle that provides force that moves your bones
11. backbone
12. forms border in all cells and controls what enters and leaves the cell
15. condition in which internal environment is kept stable despite changes in the outside environment
16. movement of food from digestive system into bloodstream
18. all the bones in your body
19. heart muscle
20. substance you get from food that your body needs to carry out processes