Advertisements Share this:TwitterFacebook Related Categories: BiologyBiologyClass IXClass VIIIMicroorganisms: Friends and FoeScienceScienceWhy do we fall ill? Tags: academybacteriabiologycbseclass 8class 9diseasefungilearnMicroorganismMicroorganisms: Friends and FoeNCERTpathogenpathogensprotozoasciencesharyasharya academysharyaacademyviruswhy do we fall ill 0 Comments Leave a Reply Cancel reply Your email address will not be published. Required fields are marked * Name * Email * Website What's on your mind? Notify me of follow-up comments by email. Notify me of new posts by email.