billys HHR revision

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  • HHR
    • reproduction
      • female reproductive system
        • egg tubes
        • ovaries
        • vagina
        • uterus
        • cervix
      • male reproductive system
        • testes
        • glands
        • sperm ducts
        • urethra
        • penis
    • disease and illness
      • 3 types of microbe
        • fungai
        • bacteria
        • virus
      • microbes
        • 3 types of microbe
          • fungai
          • bacteria
          • virus
        • you can get a vaccine to help protect against microbes.it works by injecting a weak form of the microbe so your antibodys are prepared for the illnes

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