Question

answer this please​

Answer 1

Answer:

The various characteristics of viruses are:

1. They are smaller and simpler than bacteria.

2. They are ultramicroscopic and visible only under an electron microscope.

3. They are considered to be on the boundary line of living and non-living things.

4. They are obligate parasites and cannot live on their own.

5. They cannot multiply on their own. They require living machinery to multiply.

6. Viruses consist of genetic materials (DNA or RNA) surrounded by a protective coat of protein (capsid).

7. Viruses are responsible for causing many dreadful diseases in plants, animals, and humans.

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Answer 2

Answer:

★ They reproduce at a fantastic rate, but only in living host cells.

★ They can mutate.

★ They are acellular, that is, they contain no cytoplasm or cellular organelles.

★ They carry out no metabolism on their own and must replicate using the host cell's metabolic machinery. In other words, viruses don't grow and divide. Instead, new viral components are synthesized and assembled within the infected host cell.

★ The vast majority of viruses possess either DNA or RNA but not both