Across
- 4. directs and controls the process
- 6. the outside border of a cell
- 7. the basic unit of structure and function in a living thing
- 11. all the bones in your body
- 12. provides support for your body and connects all its parts
- 14. nutrients move from the digestive system to the bloodstream
- 15. clear jellylike substance that contains many cell structures
- 17. a signal in the environment that causes you to react
- 18. what your body does in a reaction to a stimulus
- 19. a place in the body where two bones come together
- 20. makes part of your body move
Down
- 1. a group of organs that work together
- 2. release chemical signals directly into the bloodstream
- 3. covers the surfaces of your body
- 5. structure that is made up of different kinds of tissue
- 8. attached to your skeleton and provide the force that moves your bones
- 9. directs the cells activities and holds information that controls a cells function
- 10. chemical signals released by the endocrine system
- 13. a group of similar cells that preform the same function
- 16. a substance that you get from food