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immune system - Coggle Diagram

- - - - causes infected cells to perform apoptosis (cell death) by releasing perforin
  - - - helper T-cell
        
        helper T-Cells activate B-cells and cytotoxic T-cells
      - B-cell
        
        B-cells activate antibodies. antibodies are proteins that can bind onto a specific antigen. once the antibody has binded to the antigen it can stop the pathogen from moving or reproducing.