Across
- 1. hair like structures that paramecium move back and forth like oars to help them move
- 4. foot-like projections amoeba use to move around
- 7. blood vessels that connect arteries to veins
- 8. vessels that carry blood away from your heart to all parts of your body
- 9. large muscles below the lungs that help move air in and out of your lungs
- 10. the job of waste removal
- 12. the sum of all the different processes that happen in an organism
- 14. contractions of muscle tissue that lines the esophagus
- 16. a reaction to a stimulus
- 17. a group of organs that work together to perform a certain function
- 19. cells with similar structure that work together to perform a task
- 20. living things
- 22. specialized structures inside cells that carry out certain functions
- 24. specialized cells that make up nervous tissue
- 25. bottom two chambers of the heart
- 26. finger like projections that increases the lining of the small intestine so it can absorb nutrients faster
- 27. a group of tissue that work together to perform a specific function
Down
- 2. the top two chambers of the heart
- 3. purpose or task
- 5. allows the particles of some substances to pass through, but not others
- 6. the movement of particles of a substance from an area of higher concentration to an area of lower concentration
- 11. substances that provide the energy and materials that organisms need to grow, develop, and reproduce
- 13. optical device used for viewing very small objects
- 15. anything that causes a response in an organism
- 18. diffusion of water particles through a selectively permeable membrane
- 21. basic unit of life
- 23. cells that help to stop the bleeding at cuts
- 26. vessels that carry blood from your body to your heart