Question

explain virus??
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Answer 1

Answer:

A virus is a submicroscopic infectious agent that replicates only inside the living cells of an ... There are three main hypotheses that aim to explain the origins of viruses: Regressive hypothesis: Viruses may have once ...

Answer 2

Answer:

A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism.[1] Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.[2] Since Dmitri Ivanovsky's 1892 article describing a non-bacterial pathogen infecting tobacco plants and the discovery of the tobacco mosaic virus by Martinus Beijerinck in 1898,[3] more than 6,000 virus species have been described in detail[4] of the millions of types of viruses in the environment.[5] Viruses are found in almost every ecosystem on Earth and are the most numerous type of biological entity.[6][7] The study of viruses is known as virology, a subspeciality of microbiology

Explanation:

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