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An important first point to consider is that viruses are not considered living beings, since they do not have a cellular structure. They are obligate intracellular parasites, which means that they are completely dependent on other cells to reproduce. They do not have their own metabolism independent of the host. Their basic structure is composed of only two components: some type of nucleic acid and a protein envelope, called a capsid. SOCIAL NETWORKS: INSTAGRAM: / biologia_ilustrada FACEBOOK: / biologia-ilustrada-102278165146404 TIKTOK: / biologia.ilustrada