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#693353 - 06/07/11 12:21 AM 10 Characteristics of Life - What is Life?
Deborah - Biology Offline
Jellyfish

Registered: 12/26/10
Posts: 129
Loc: California, USA
There is a new article up on the Biology site - 10 Characteristics of Life - What is Life?

"Most people know that biology is the study of living organisms. But - do you know exactly how the concept of "life" is defined by science?"

Read the article and then come on back here to discuss it!

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#693364 - 06/07/11 02:43 AM Re: 10 Characteristics of Life - What is Life? [Re: Deborah - Biology]
Francine - German Culture Offline
BellaOnline Editor
Parakeet

Registered: 09/02/08
Posts: 907
Loc: Germany/France

Really interesting to see ‘Life’ put into that context Deborah, thanks for a great article.

Your short addenda covering ‘Viruses’ is very topical for Germany at the moment as there is an ongoing outbreak of a E.coli bacterium, which has affected the north of the country badly, bringing deaths and almost two thousand hospitalised.

Its root cause has not been found yet and the list of raw vegetables the population are being told to take care about eating is growing, however the media repeatedly keep reporting it as being as a ‘virus’.

Am no great shakes at biology but, although a virus can make a a harmless bacteria toxic, surely ‘bacteria’ and ‘virus’ are two very different things?

_________________________
Francine McKenna, the German Culture Editor


The German Culture Forum Avatar is 'The Disney Castle'. King Ludwig's NEUSCHWANSTEIN CASTLE in Bavaria, Germany

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#694825 - 06/11/11 09:05 PM Re: 10 Characteristics of Life - What is Life? [Re: Francine - German Culture]
Deborah - Biology Offline
Jellyfish

Registered: 12/26/10
Posts: 129
Loc: California, USA
Hello Francine!

Yes indeed, a bacterium and a virus are two very different things! Bacteria like E.coli meet all the characteristics of life, although we see them only through a microscope.

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#695884 - 06/16/11 07:27 AM Re: 10 Characteristics of Life - What is Life? [Re: Francine - German Culture]
Katherine Reeds Offline
Newbie

Registered: 06/16/11
Posts: 6
[quote=Francine - German Culture][font:Comic Sans MS]

Am no great shakes at biology but, although a virus can make a a harmless bacteria toxic, surely [i]‘bacteria’[/i] and [i]‘virus’[/i] are two very different things?

[/font]
[/quote]

Generally All viruses exist to make more viruses. With the possible exception of bacterial viruses, which can kill harmful bacteria, all viruses are considered harmful, because their reproduction causes the death of the cells which the viruses entered. I agree with your point that Virus & bacteria are 2 different things

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