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Environmental exposure

Environmental exposure

The exposure to potentially harmful chemical, physical, or biological agents in the environment or to environmental factors that may include ionizing radiation, pathogenic organisms, or toxic chemicals.


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Living or not? (viruses,viroids and prions).

... take three different species of amoeba, expose them to a variety of environmental samples, and see if anything big starts growing in them. They ... gene appears to be functional: Megavirus was able to grow following an exposure to UV that was sufficient to disable Mimivirus. Both viruses share ...

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by Sumanth001
Sun Dec 08, 2013 12:37 pm
 
Forum: Microbiology
Topic: Living or not? (viruses,viroids and prions).
Replies: 15
Views: 10402

Evolution and environment question--breathing, etc

... not lead to any noticeable change at all. However, there will also be environmental factors to consider (since the human body can adapt without ... think there's anything major that would come as an adaptation to UV exposure - probably a lower rate of skin cancer and eye damage, and probably ...

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by AstraSequi
Tue May 29, 2012 4:32 am
 
Forum: Evolution
Topic: Evolution and environment question--breathing, etc
Replies: 3
Views: 3552

Re: Theories - Origin of Life

... across each other. Again, I see no contradiction. I would add that some environmental factors can change the mutation rate (for example, exposure to UV light), but these are exceptions. What I am describing (which you could call ...

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by AstraSequi
Tue Mar 27, 2012 2:23 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 560
Views: 907159

semen lifespan outside body

1/ Probably not very long, but will depends on a lot of environmental factor (humidity, temperature, UV exposure....). However it can survive a few days in the body, where there is no risk of drying out, ...

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by canalon
Thu Mar 31, 2011 1:44 pm
 
Forum: Microbiology
Topic: semen lifespan outside body
Replies: 2
Views: 3261

Ask for fulltext

... 2010,30(1):23-30. 2. Genes Induced in Response to Mercury-Ion-Exposure in Heavy Metal Hyperaccumulator Sesbania drummondii.Environmental Science & Technology. 2009,43(3): 843-850. 3.Characterization of a Lead Hyperaccumulator ...

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by jacksonchen
Sun Aug 22, 2010 7:32 am
 
Forum: PDF & Doc Files
Topic: Ask for fulltext
Replies: 0
Views: 2503
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