Cells and Body System

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