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Exception to Characteristics of Life.

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

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Postby mith » Fri Jan 28, 2005 8:36 pm

It's this crystal space virus that feeds on energy and matter. It grows and grows and is seemingly unstoppable. Well, I won't ruin the story :)
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Re: Exception to Characteristics of Life.

Postby thank.darwin » Sun Jan 30, 2005 1:27 am

trus wrote:Greetings,

I have a bio quiz question that I cant seem to find the answer to and was wondering if any of you gifted individuals could help me out.

The question is:

What has all of the characteristics of life (ie, grows, reproduces, is made of cells) except does not have the last characteristic, which is “has DNA or RNA”?



~Paul


A virus - Still up in the air
No amount of experimentation can ever prove me right; a single experiment can prove me wrong.
-Albert Einstein
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Postby waupor » Tue Feb 01, 2005 8:52 am

I have far less bio knowledge.
I think virus is not living thing.

I do also think red blood cell is no DNA.
It has no nucleus for increasing the ratio of surface area to volume.
But I don't know whether the DNA present in the cytoplasm or not.
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Postby thank.darwin » Tue Feb 01, 2005 3:29 pm

waupor wrote:I think virus is not living thing.


It has many of the things that make something living - It needs a host to survive - even though small pox can survive for years in the environment without a host (if I'm wrong please correct me; I would like to know)
No amount of experimentation can ever prove me right; a single experiment can prove me wrong.
-Albert Einstein
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Postby Poison » Tue Feb 01, 2005 4:04 pm

someone correct me if im wrong but viruses seem like a form between living and nonliving. arent they? they need host to survive, they have sensivity to heat and they are not immortal means that they carry characteristics of life. But they turn to cristal form without a host. (not forever but for some time of course) which seems like a characteristic of nonliving.
So, are they living or nonliving or what else :?:
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Postby ERS » Tue Feb 01, 2005 6:38 pm

Poison,
THAT is a good question, and one that science continues to debate. At what point can you start making exceptions to the characteristics of living vs. non-living materials? If you make an exception for viruses will we also have to excuse prions...

Anyone else?
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Postby mith » Tue Feb 01, 2005 8:33 pm

Note the original question states it's made of cells. The last time I looked the virus isn't a self-contained self maintaining entity....there's really no maintanence.
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr
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Postby Poison » Tue Feb 01, 2005 11:00 pm

In one of the books I've read, it says:" The things which can do respiration are considered to be LIVING. the others are considered to be NON-LIVING."
Do you think that respiration is exactly the point which living and non-living things can be classified? It sounds a bit strange to me. :roll:
what do you think?
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Postby trus » Wed Feb 02, 2005 6:08 am

Hello everyone. Glad to see that this question has sparked some conversation. While I still havent discovered the answer to this riddle, let me help those of you that are wondering whether a virus is alive for dead. The 6th qualification that needs to be met for the object to be considered alive is "to contain DNA or RNA". Viruses contain RNA.

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Postby waupor » Wed Feb 02, 2005 8:40 am

Poison wrote:In one of the books I've read, it says:" The things which can do respiration are considered to be LIVING. the others are considered to be NON-LIVING."

Then how about PC's CPU ? Do you think that they can thinking themself ? Are they a living things ?
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Postby Poison » Wed Feb 02, 2005 3:36 pm

waupor wrote:Then how about PC's CPU ? Do you think that they can thinking themself ? Are they a living things ?

I couldnt get the question. Viruses are made or organic material arent they? what is the relationship between PC and virus?
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Postby mith » Wed Feb 02, 2005 8:21 pm

Well you could argue that pc's (robots) are living. They consume electricity and metals. They have intelligence(somewhat). They reproduce by assembling clones of themselves and in other cases making better copies and improving upon existing designs.
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
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