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Impacts

Impact

1. Contact or impression by touch; collision; forcible contact; force communicated. The quarrel, by that impact driven. (Southey)

2. (Science: mechanics) The single instantaneous stroke of a body in motion against another either in motion or at rest.


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Theories - Origin of Life

... at all, but was brought here from elsewhere in space, a notion known as panspermia. For instance, rocks regularly get blasted off Mars by cosmic impacts, and a number of Martian meteorites have been found on Earth that some researchers have controversially suggested brought microbes over here, ...

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by einfopedia
Wed Mar 28, 2012 7:34 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 562
Views: 932283

Re: Theories - Origin of Life

... some trepidation to engage in anything that can be analysed scientifically. So I ask again, is anyone prepared to at least engage on HGT as it impacts on the very subject you yourself introduced.

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by scottie
Wed Jan 11, 2012 2:53 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 562
Views: 932283

Re: Camouflage in nature

... The survival of organisms depends on the environments in which they live in the present. If the environment changes in a way that negatively impacts an organism's survival, the organism will have to adapt to the new environment or pay the consequences (extinction). Let's take the bug in the ...

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by Gavin
Fri Nov 11, 2011 9:36 pm
 
Forum: Evolution
Topic: Camouflage in nature
Replies: 16
Views: 13082

strand biases in mitochondrial genomes

... G always pairs with C with the exception of the temporary induction of mispaired mutations. GC skew means more G's on a strand than C's - and it impacts upon the codon usage - see the redundancy in the genetic code - remember that the third base pair of every 3bp codon is more often than not ...

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by merv
Sun Oct 02, 2011 6:06 pm
 
Forum: Bioinformatics
Topic: strand biases in mitochondrial genomes
Replies: 4
Views: 6151

Re: Re:

... other population successfully outcompeting it and passing on its genes for mortality. The selection has to happen at the individual level but what impacts the group often does impact the individual, so that's not a barrier. Hmmh. So what is keeping the immortals in their local ecosystem? If the ...

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by biohazard
Wed Aug 10, 2011 7:20 am
 
Forum: Evolution
Topic: Why do women live longer than men?
Replies: 24
Views: 23749
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