Across
- 4. self regulating process where organism reaches equilibrium
- 6. blood vessels that distribute oxygen-rich blood to your entire body.
- 8. digestion that involves enzymes to break down food
- 9. an organism's ability to keep a constant internal environment
- 10. chemical messengers that send signals into the bloodstream and tissue
- 13. system of organs and tissues that help you breathe
- 14. system made of your brain, spinal cord, and all the nerves of your body
- 16. system that removes excess waste from the body
- 17. organ that makes one or more substance and release the substances
- 18. system that focuses on production of sperm and egg cells
- 19. system composed of our bodies central framework
- 20. system that carries oxygen, nutrients, and hormones to cells
Down
- 1. cells that form the muscles of the body
- 2. blood vessels that transport blood, nutrients and oxygen to cells in your organs and body systems
- 3. the breakdown of food without chemical change to the food molecules
- 5. system that breaks nutrients down so body can absorb it for energy
- 7. Controls body functions through hormones
- 11. blood vessels that collect oxygen-poor blood and return it to your heart
- 12. system composed of muscle fibers
- 15. specialized tissue that applies forces to different parts of the body by contraction