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18. Viruses are considered

because they can not perform the characteristics of life without a
19. Viruses are made of two basic compounds,
and a
made of protein.
20. A virus infects a cell by injecting
into a cell.

18. Viruses are considered because they can not perform the characteristics of life-example-1

1 Answer

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Answer:

6. antibodies and DNA for the question no.6

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