Viruses are relatively simple in structure. They consist of one or more molecules and are sometimes surrounded by a protein envelope Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/viruses-are-relatively-simple-in-structure-they-consist-of-one-or-more-molecules-and-are-sometimes-surrounded-by-a-protein-envelope-image559663619.html

RF2REETJB–Viruses are relatively simple in structure. They consist of one or more molecules and are sometimes surrounded by a protein envelope

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