Chapter 17

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Across
  1. 3. ingredient held in solution
  2. 4. absence of oxygen
  3. 5. inhibitor of calcification
  4. 7. Without definite shape
  5. 9. protects body against infection disease
Down
  1. 1. nucleus
  2. 2. surrounding framework
  3. 4. microorganism can live in o2
  4. 6. teeth that contains calcium phosphate
  5. 8. not containing cells