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DaveC426913
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#49
Jun23-09, 10:09 PM
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Quote Quote by byohannan View Post
Life is a borderline unit of lifeform. The exactly sit the border of the quick and the dead.

they do reproduce using a host cell
they are self contained
they mutate
they understand the presence of a potential host cell
They are not self-contained. The virus unit itself is not enough to metabolize or meet most of the other criteria for life.

They do not "understand the presence" of a potential host cell. The chemistry to enter a cell either works or does not.