chapter 15 puzzle

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Across
  1. 2. to use your muscles overtime
  2. 4. ability to carry oxygen efficiently
  3. 8. when your muscles use the most oxygen
  4. 9. when your heart uses most oxygen
  5. 10. changing your body's position quickly
Down
  1. 1. being the opposite of physically active
  2. 3. to use two or more parts of the body
  3. 5. to move your joints at full range
  4. 6. to use maximum strenght,combines speed
  5. 7. condition of being physically fit