Stem Words- Back to Basics

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Across
  1. 1. prelude
  2. 2. combination
  3. 4. international
  4. 6. undone
  5. 7. semicircle
  6. 8. bilateral
  7. 10. antibody
Down
  1. 1. postgraduate
  2. 3. mistake
  3. 5. equation
  4. 7. subterranean
  5. 9. intracelluar