Biology / Bio 1917 · Atom · ~20 seconds
"A Virus Is a Living Organism"
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Calling a virus a living organism overstates an unsettled question — by the cellular-life criteria most courses teach, a virus fails several tests.
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A virion has no metabolism, makes no ATP, and cannot reproduce without hijacking a host cell's machinery.
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This entry states one basis for denying viral life — Bio 1919 gives the equally strong basis for granting it.