The
Diversity of The World of Life
The Major Groups of Life etc.
Viruses
(Virae)
Representatives
Biology
Although some viruses that
infect animals are covered by a membrane, viruses are not membrane-bound,
living cells. Viruses are
basically just protein-coated strands of "nucleic acid" (either
DNA or the related RNA) and are probably descended from
living cells that lost the ability to reproduce themselves without
inserting themselves into the genes of their "host" cells.
The Major Groups of Life etc.
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