Interpretation:
Virus is a core of genetic material surrounded by an outer coat of protein. The protein coat protects the genetic material and helps the virus enter the host cell. Host is cell or organism in which or on which a virus lives to obtain food and living space. Outside of living cell, viruses crystallize and act more like a nonliving object. They cannot
Concept used:
Viruses is in crystalized form and inactive for many years viruses does not have necessary material such as
To determine: the need of viruses to invade a host cell
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