7.Allergy

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Across
  1. 4. Substance that cause allergies
  2. 5. reaction to the foreign substances
  3. 7. Inflammatory chemical
  4. 8. walls of bronchioles contract
  5. 9. Produce allergic reactions
Down
  1. 1. allergic to sunlight
  2. 2. Red bumps or patches on the skin
  3. 3. reaction to pollen
  4. 6. systemic allergic response