Immune System- By Shanel

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Across
  1. 2. Triggers the immune response in the body
  2. 3. Another name for White Blood Cells
  3. 4. Body's protection against disease
  4. 5. Known as the 'eating cells'
  5. 6. This has T cells, B cells and NK cells
Down
  1. 1. Proteins made to recognise foreign substances
  2. 2. These help to fight off bacteria