Answers

2016-03-03T16:50:23+05:30
Virus can only live in host cells means living cells they cann\'t live in a artificial medium.That\'s why it  is difficult to make antivirul drug.
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  • Brainly User
2016-03-03T18:06:09+05:30
Beacuse they have very few biochemical processes of their own.They depend upon hosts.
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