Biology

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Across
  1. 1. muscle sheet
  2. 6. internal respiration
  3. 8. food breakdown
  4. 9. c shaped rings
Down
  1. 2. shock absorber
  2. 3. continues chemical reaction in our body
  3. 4. cellular respiration
  4. 5. monneuiap unscramble
  5. 7. columnar cell