2007-01-26 13:46:45 · 11 answers · asked by Anonymous in Society & Culture ➔ Religion & Spirituality
what?...........
2007-01-26 13:50:02 · answer #1 · answered by Anonymous · 0⤊ 1⤋
It's happening right now in the tundra.
Natural Selection is not a mechanism, it's a sieve. As the environment changes around the plants, the plants who can't handle the changes die. Plants that can handle the changes don't die. Occasionally (it's rare) a mutated plant does better than the normal ones and takes over (breeds better) than the normal ones. That is natural selection.
Do a search for "Drunken Trees"
2007-01-26 21:57:43 · answer #2 · answered by Gordon M 3 · 0⤊ 0⤋
It's called Artifical Selection, something humans do. We artifical select all kinds of plants, corn and wheat for example. We even do it for cows and dogs. Think of how many different kinds of wheat or dogs there are, 1000's and those have happened in a few thousand years. Now just imagine if Natural Selection is at work, for BILLIONS of years, you get the diversity of the biological world we see today.
2007-01-26 21:52:15 · answer #3 · answered by skunkgrease 5 · 1⤊ 0⤋
How would you know when the mutations and hybrids are normal to us now in this small time frame we have been keeping track and noticing things like this on earth.
We know mostly about the mutations and hybrids which we purposely created.
Look up the word hybrid under hybrids in nature hun.
Google hybrid and look at the list of hybrids in nature......
By the way, this is not a good argument AT ALL for your alternative "theory" that Adam and Eve in a spirit's image, got droppped off on thin teeny weeny blue speck of a planet by a diety even though this "special" planet for those undergoing the soul test is like a grain of sand in a billion vast oceans.
2007-01-26 21:50:20 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Mol Ecol. 2006 Jul;15(8):2291-300.
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Potential selection in native grass populations by exotic invasion.
Mealor BA, Hild AL.
Department of Renewable Resources, University of Wyoming, Box 3354, Laramie, Wyoming 82071, USA. bamealor@uwyo.edu
Ecological impacts of invasive plant species are well documented, but the genetic response of native species to invasive dominance has been often overlooked. Invasive plants can drastically alter site conditions where they reach dominance, potentially exerting novel selective pressures on persistent native plant populations. Do native plant populations in old exotic invasions show evidence of selection when compared to conspecific populations in adjacent, noninvaded areas? We employ amplified fragment length polymorphism (AFLP) analysis to screen a large number of loci from two native grass species (Hesperostipa comata (Trin. & Rupr.) Barkworth and Sporobolus airoides Torr.) that occur in old infestations of the invasive forb Acroptilon repens.... We propose that native plants in communities dominated by exotic invasives may be undergoing natural selection.
2007-01-26 21:56:02 · answer #5 · answered by ivorytowerboy 5 · 0⤊ 0⤋
I'm 100% certain that it has been observed in plants.
2007-01-26 21:50:55 · answer #6 · answered by mullah robertson 4 · 0⤊ 0⤋
Yes, but you should probably ask this in the Biology section if you want to actually get the scientific answer.
2007-01-26 23:14:03 · answer #7 · answered by One & only bob 4 · 0⤊ 0⤋
anyone who has done any selective breeding has, it's basically the same thing
2007-01-26 21:51:20 · answer #8 · answered by Nick F 6 · 0⤊ 0⤋
How many generations would have to watch for this...?
And what does this have to do with religion and spirituality?
2007-01-26 21:50:56 · answer #9 · answered by Indigo 7 · 0⤊ 0⤋
have you ever had to switch weed killers because they didn't work anymore???
meaning-the plants mutated into a weed-killer resistant strain
2007-01-26 21:50:22 · answer #10 · answered by Anonymous · 4⤊ 0⤋
yes there are many published examples. why don't you look for them?
2007-01-26 21:50:31 · answer #11 · answered by Tiktaalik 4 · 1⤊ 0⤋