Question

define virus ?????????​

Answer 1

Explanation:

a living thing, too small to be seen without a special instrument (microscope), that causes disease in people, animals and plants

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Answer 2

Answer:

an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host.

"the hepatitis B virus"

2.

a piece of code which is capable of copying itself and typically has a detrimental effect, such as corrupting the system or destroying data.