Across
- 2. a system that releases hormones
- 5. an organism that consists of only one cell
- 6. a system that takes oxygen and brings it to the parts of your body
- 7. a system that takes in air
- 10. a system that's job is to break down food
- 13. theory is a theory that states all cells come from pre-existing cells, cells are the basic unit of life, and all organisms are made up of
- 15. a system that acts as the frame for the body
- 19. carry oxygen
- 20. is a stable internal environment
- 24. a system that works with the skeletal system to create movement
- 25. a single celled organism with no nuclues
- 26. a system that's called the body's army
Down
- 1. the most important organ
- 3. the smallest blood vessel
- 4. an organ that pumps blood
- 8. an organ, part of the excretory, acts as a filter
- 9. the basic unit of life
- 11. a multi celled organism
- 12. an organ a part of the circulator
- 14. a part of the respiratory system, its job is to take in air
- 16. an organism that has more than one cell
- 17. a living thing
- 18. a system in the body that sends signals to the brain to make you feel
- 21. a system that expels waste
- 22. an organ part of the digest
- 23. A process where plants