2018-08-09, 08:43 | Link #221 | |
AS Oji-kun
Join Date: Nov 2006
Age: 74
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New research on viruses suggest some form "packs" and hide inside spherical sheathes to hide from view until ready to attack.
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Sounds like some rich new material for our manga-ka, especially the "invisibility cloak."
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2018-08-09, 09:50 | Link #222 | |
Senior Member
Join Date: Dec 2016
Location: Detroit
Age: 32
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2018-08-09, 10:01 | Link #224 |
Senior Member
Join Date: Dec 2016
Location: Detroit
Age: 32
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More like Changing Receptors been like Antigenic Shift and Antigenic Drift Occurs since Viruses can been mutating faster. https://www.sciencedaily.com/release...0718085117.htm as it says how human cytomegalovirus survives may help in the development of a vaccine, as well as in the fight against other viruses with similar evasive tactics.
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2018-08-09, 14:04 | Link #225 | |
Logician and Romantic
Join Date: Nov 2004
Location: Within my mind
Age: 43
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"Alive" is an artificial term, for human mental convenience. It doesn't really exist anywhere except in our imaginations. That's why science has trouble fitting it into real life. If you can replicate, if you can maintain a population, then you exist. And existing is what evolution cares for, not living. Viruses defend themselves not because they want to or not want to, but because if they they don't then they stop existing.
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2018-08-09, 14:28 | Link #226 |
Kamen Rider Muppeteer
Join Date: Jan 2012
Location: Unknown
Age: 39
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Not even that, they don't have any reason to do what they do. They just happen to do that because that's what they do. No choice was made, no variables considered, etc. Just a sort of natural selection that allowed certain mutations to thrive and others to die off.
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2018-08-09, 19:14 | Link #228 | |
formerly ogon bat
Join Date: May 2011
Location: Mexico
Age: 53
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https://www.youtube.com/watch?v=FCkagYixpuc |
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2018-08-09, 19:48 | Link #229 |
Senior Member
Join Date: Dec 2016
Location: Detroit
Age: 32
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Also most pathogenic Bacteria had certain ways to kill white blood cells like Staphylococcus Aureus have their Leukocidin toxins would Disrupts neutrophil membranes and causes discharge of lysosomal granules. Streptococcus pyogenes have it.s Streptolysin can Repels phagocytes and disrupts phagocyte membrane and causes discharge of lysosomal granules. since they have Invasins.
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2018-08-09, 22:57 | Link #230 |
Logician and Romantic
Join Date: Nov 2004
Location: Within my mind
Age: 43
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A useful concept for humans. Not useful in biology. The idea of alive vs dead pre-dates modern science, thus it make sense that it had nothing to do with modern science as a concept.
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2018-08-10, 09:30 | Link #233 |
Senior Member
Join Date: Dec 2005
Location: California
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There’s debate whether viruses count as living. To be alive something has to metabolize nutrients and be able to reproduce. Viruses on their own are metablicly inert (viral particles do not take in and process nutrients) and can only replicate by parasitizing a cell. I’d say most biologists would say on their own, viruses are not “alive”, as they don’t fulfill those two requirements without a host.
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2018-08-10, 09:38 | Link #234 |
Senior Member
Join Date: Jul 2012
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By that stanard mules for example also aren't alive. So yeah this definition is also far from perfect. Virus in comparison can reproduce even if it needs "help". So it's more "alive" then them.
Just playing devil bit of advocate here.
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2018-08-10, 12:09 | Link #237 |
formerly ogon bat
Join Date: May 2011
Location: Mexico
Age: 53
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Whether virus are living beings is a philosophical debate since the label changes nothing in the way science researches them. IMO they are biological objects or more precisely, pieces of biological code that need a compatible biological computer (a cell) to replicate itself.
A living being can lose/lack the ability to reproduce, but always has the ability to feed (from sunlight at the very least). A virus does not need to feed, you can't starve it since it does not need oxyigen or nutrients, only an environment where it will not degrade until it can reach a cell that executes its code. Unlike bacteria or fungi, it does not have any kind of active defense, if T cell we able to recognize them in the spot, it would only need to break it apart. |
2018-08-11, 04:09 | Link #239 | |
Kamen Rider Muppeteer
Join Date: Jan 2012
Location: Unknown
Age: 39
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action comedy, biology |
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