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According to the answer from my textbook, it is because "When outside a living host cell, the virus exists as a crystal and is not considered a living thing because it does not carry out any life processes."

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Ling Hui Ying

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2y ago
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Herbert Boyer

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2y ago
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Wiki User

13y ago

Viruses are not included in any of the kingdoms of organisms because they are generally not thought of as truly alive. Unlike living things, viruses do not have cells (they are much smaller) and are basically just DNA (or sometimes RNA) wrapped in protein. Thya slo do not carry out any metabolic processes (like eating) and although they reproduce, they cannot do so by themselves, and need to "hijack" a living cell from an organism.

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Wiki User

9y ago

Viruses are not alive so they can not be placed in any kingdom.

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Wiki User

12y ago

it cant reproduce without a host cell therefore it doesn't fit the criteria of a life form and cannot belong to a biological kingdom.

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Wiki User

14y ago

because viruses are not alive they have to have a host to reproduce

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Wiki User

9y ago

Because they are just DNA.

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Q: Why have viruses not been classified in any of the five kingdoms?
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What are the five kingdoms for microorganisms?

Five kingdoms are:- 1) Viruses 2) Bacteria 3) Protozoans 4) Algae 5) Fungi


Why are viruses not classified into any five kingdom?

Viruses are not an organism at all. They are not alive.


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Viruses do not belong to any of the five kingdoms of life.


Why are viruses denied a kingdom?

Virus' are not living - they cannot exist outside a living organism, and therefore cannot be classified in the same way as other organisms


What living things are classified into 5 kingdoms?

Living things are divided into five kingdoms: animal, plant, fungi, protist and monera. Living things are divided into five kingdoms: animal, plant, fungi, protist and monera. Living things are divided into five kingdoms: animal, plant, fungi, protist and monera.


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because the five kingdoms have been split up in to 5 very vague categories, and are able to explain all of the following five kingdoms,


How are organism classified?

by their kingdoms by a five knigdom classification system which classifies all organisms


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name of five viruses that have been on computers in the last five years? wat they did? wat there called?


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