Are viruses life? Is fire life?

Debate and discussion of any biological questions not pertaining to a particular topic.

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SpacePerson
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Are viruses life? Is fire life?

Post by SpacePerson » Wed Dec 31, 2008 7:36 pm

Are viruses life?

And what about fire? Fire grows, fire consumes, fire needs oxygen, fire moves, fire gives off waste (smoke and ash), and can be "killed".

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alextemplet
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Post by alextemplet » Fri Jan 02, 2009 1:43 am

Viruses are debatable, but in my opinion they qualify as lifeforms. Be advised, however, I am pretty sure this opinion goes against the majority of scientific concensus, so I wouldn't suggest using this information in a report or anything.

Fire, no, not a life form, just the heat and radiation energy resulting from combustion.
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Alberts
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Re: Are viruses life? Is fire life?

Post by Alberts » Wed Jan 14, 2009 4:47 pm

Viruses are life. But fire is not.
Viruses can replicate, and some viruses can metabolize, so they are lives.
Fire cannot metabolize and replicate, so they are not life. Fire only exchange matter and reproduce. Reproduction is not the character of life.

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Post by alextemplet » Wed Jan 14, 2009 10:09 pm

Fire doesn't reproduce. It's just the visible result of a chemical reaction. Not even close to being alive.
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Alberts
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Re: Are viruses life? Is fire life?

Post by Alberts » Thu Jan 22, 2009 9:19 am

Well, you said that fire cannot reproduce. Then what is the definition of reproduction? I want a clear answer.

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Post by alextemplet » Thu Jan 22, 2009 10:17 pm

The simplest definition of reproduction is probably the copying of DNA. Fire doesn't copy anything; it just burns. It's about as alive as a beam of light.
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favorina
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Re: Are viruses life? Is fire life?

Post by favorina » Fri Jan 30, 2009 9:01 pm

Alberts wrote:Viruses can replicate, and some viruses can metabolize, so they are lives.


Viruses do not metabolise. They reproduce and this only when inside the host cell. The host cell synthesises the proteins for the virus using the cell's ribosomes.

Are viruses alive? If it were purley a matter of what undergos natural selection then i believe so. fire on the other hand is simply the biproduct of an exergonic reaction.

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Post by MichaelXY » Sat Jan 31, 2009 4:22 am

More like exothermic... The two terms are somewhat confusing.

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