HBS Test Practice 1

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Across
  1. 2. a group of cells that have the same job
  2. 4. one organ in the respiratory system
  3. 5. one living thing
  4. 8. a group of organs that have the same job
  5. 10. one organ in the cardiovascular system
  6. 11. one organ in the excretory system
Down
  1. 1. smallest unit of life
  2. 3. one organ in the muscular system
  3. 6. one organ in the digestive system
  4. 7. one organ in the nervous system
  5. 9. a group of tissues that have the same job