Science Review

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Across
  1. 3. made up of only one cell
  2. 5. cells that don't have a nucleus
  3. 10. similar cells grouped together form
  4. 11. this system sends and receives messages from the brain
  5. 12. the process that results in a species no longer existing
  6. 14. arrangement of things in the order that they occurred
  7. 16. this system allows you to breath in oxygen and out carbon dioxide
  8. 18. multiple tissues grouped together form
  9. 19. this system removes liquid waste
  10. 21. multiple organs grouped together form organ
  11. 22. describes the variety of different species of organisms
Down
  1. 1. cells that do have a nucleus and are more complex
  2. 2. structures in cells that carry out specific functions
  3. 4. preserved remains of organisms, or imprints, that show what long-dead organisms looked like and how they lived
  4. 6. this system moves blood throughout the body
  5. 7. this system breaks down food and provides nutrients to the body
  6. 8. this system provides supports and helps protect your body
  7. 9. this system helps to move your body
  8. 13. made up of more than one cell
  9. 15. any living thing
  10. 17. fossils are found in this layer of rock
  11. 20. basic building blocks of life