This is a question we will probably never find an answer to. There have been many origin of life stories. It seems as if every human society has had a different one. Though it does seem interesting that anytime people couldn't come up with a better explanation, a higher power must have done it. Some are pretty far out. a good source for seeing various theories is wikipedia
http://en.wikipedia.org/wiki/Origin_of_life
Personally, I'm not sure what to believe. I firmly believe in evolution, because I believe all evidence so far supports it. So far, origin of life theories are all speculation, though there have been some cool experiments in which a biochemist was able to produce basic structures in a closed system with just what is thought to have been present on our planet way back when (just some basic gases).... Miller experiments. It's actually described in the wikipedia article.
while this is interesting and leads to many speculations, there's just no way to actually prove where life came from completely.
Maybe there is a god, but who can really know for sure. In the end, you have to make the decision yourself about whether you want to accept the easy way out "god did it," or being condemned to wondering for a long time until a good theory is presented that has good evidence to support it. This could take a long time, maybe even forever. Personally, I have accepted that it's possible that I may never know the true answer to how life came to be on our planet and perhaps in the universe, but I will know that I never just accepted an answer just because there wasn't a better one out there.
2007-05-25 15:49:10
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answer #1
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answered by swirly 1
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Well, this is my theory of evolution. Think hard and long about it. These are the facts that most Christians cannot get out to support God, so prepare yourself for what comes next:
The modern evolution theory says that one species can evolve from another through 1. Mutations, 2. Natural Selection, and 3. Adaptation. There are also theories that says that life evolved from around volcanoes. Amino Acids would have formed protein and made DNA which evolved. Another is that an Asteroid brung life to Earth. Well, we apparently evolved from monkeys, right? Which evolved from amoebas which evolved from bacteria. Well, what did the bacteria evolve from? There is no organism that we have found that is smaller than bacteria and could evolve into bacteria. In order for bacteria to evolve, it would have to have evolved from abiotic factors (rocks, dirt, etc.). A living organism cannot be created with dirt or rocks WITHOUT there being some sort of Intelligent design behind it. What I'm saying is, in order for life to have evolved, it would have to have been created by God. And also, if life had evolved from around volcanoes and created DNA, then we would have found Amino Acids deposits everywhere around the volcanoes. The scientists have been looking for over 30 years in every place immaginable and they still haven't found any of these deposits. And w/ the asteroid, the bacteria would have burned up in the atmosphere (most bacteria die at 210 degrees Farienheit). Even if they were inside the asteroid, Iron is a conductor of heat and it will kill bacteria. Plus, there are only a FEW "Complex Bacteria" that can live in Spacial (Space) conditions.
One more added thing. Science deals only with things that can be experienced directly or indirectly through the senses. By definition, science has nothing to say about the supernatural. This is not to say that science necessarily denies the existence of immaterial or supernatural relationships, but only that whether or not they exist, they are not the business of science. Otherwise, Religion should not have anything to do w/ science and vice versa.
2007-05-25 19:28:04
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answer #2
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answered by Anonymous
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The "evolution theory" is not just about the evolution of humans.
It includes the evolution of every single species on the planet, existing or extinct, all traceable though ancestry going back to the earliest single-celled life forms. Evolution explains that process quite well.
Where those earliest life forms came from is a completely different question, and is NOT part of evolution. However, yes scientists wonder about this too, and have several plausible theories.
2007-05-25 14:23:42
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answer #3
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answered by secretsauce 7
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Evolution is a fact.
Various people have had various theories about evolution. Just how closely the theories resemble reality is a matter of opinion or judgment. However Mr. Darwin and Mr. Wallace put forward the most generally successful theory in 1859. Though it has been modified as new knowledge has emerged, it has been found to be generally correct. So far.
The appearance of life on Earth is not a matter that the Darwin/Wallace theory is concerned with, which seems to have been recognised by Darwin himself. Many of his less informed critics however have missed this point.
Evolution according to the Darwin/Wallace theory does not really start until there are multiple organisms either competing with each other or adapting to a changing environment.
If, as appears likely, the appearance of life on Earth involved a single or at the most a very few organisms, there would not have been enough organisms to compete with each other for quite a long time. Likewise, if the environment was not changing rapidly or at all, there would have been no pressure to adapt. The organisms may have spread out over whatever environment they had for several thousand years, maybe much more before there was sensible competition between them or the environment began to pressure them.
In this case one adaptive pressure might have been internal, such that only those that reproduced accurately enough survived.
While there has never been even an approximation of life created from components "in vitro", chemists have found multiple chemical systems which have some of the self-organising or other properties of life. None of these are proof or even proof of concept, but there is actually little research in this area since it is almost entirely speculative.
The Universe is a very large place. To date more than 230 planets have been detected outside our solar system, one or a few have been directly observed. These planets orbit stars within a few dozen light years, which cosmically is the nearer part of our back yards. So it begins to look as if most ordinary stars have planets of some kind. How many of these have planets that resemble the Earth? One in a hundred, one in a thousand or is it one in ten?
There are billions of observable galaxies, no-one knows how many, but there are clearly billions. Each galaxy contains millions to billions of stars. There could be ten to the power 15 or 18 or 20 or more stars in the Universe as a whole.
Most cosmologists calculate that at present we can see a large fraction of the entire Universe, about 12,000 million light years in any direction. Others have suggested that the part of the Universe that we see is but a tiny fraction of the whole.
In either case, it is looking increasingly as if the number of Earth-like planets in the Universe may be at least several thousands of billions and could be enormously more.
Each of these Earth like planets has a history of several tens to thousands of millions of years. They must be of such an age, or they would not be Earth-like. In millions of locations around each planet and millions times over those years there must have been small environments which resemble closely, exactly or distantly the sort of environment that life might appear in, if such a thing is possible.
So there would have been uncountable trillions of trials as water washed in and out of rock crevices, froze and thawed, heated and cooled near hot springs or whatever environment was suitable.
With these large numbers of trials over geologic time, even if the appearance of life were exceedingly unlikely, it begins to look like a possibility at some place and at some time. It happened to be here, but it might have been somewhere else.
Life on other planets? Quite possibly, but not necessarily nearby or intelligent.
2007-05-26 03:08:45
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answer #4
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answered by Anonymous
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Evolution covers a lot of ground but you wouldn't know it listening to the media. The basis of evolution is that species have a variety of offspring and those suited to their environment survive passing along favorable traits. That is true and it's how we breed animals. If you take two fast race horses and breed them together you are very likely to get an even faster race horse. The problem with evolution is where did the first of something come from? Where did the first eye ball come from? An evolutionist would say there was some cells on a creature that were sensitive to light and then they differentiated and so forth until you got an eyeball. It's far fetched. Then you ask an evoloutionist where did the first life form come from? Evolutionists will tell you that there were a bunch of amino acids floating in water and lightning struck and they formed proteins which then formed cells. Wait a minute, that's quite a leap there. You can't just throw a bunch of amino acids in a large vat and shock life out of it otherwise we could reproduce that.
Basically, I believe God created the universe and the world, he has a plan and he created things to work on their own. He works through humans hearts and minds. He can do whatever he wants but he wants the universe to work for itself.
Though I am a christian I have no problem with scientists exploring the universe through the scientific method to figure out how it works. The problem with evolution is it is scientific history and it is difficult to figure out what happened in history because it can't be reproduced. Evolution from monkey to man or from non life to life will never be proven until it can be re produced.
I really hate all the dogma on both sides. Let God be God and science be science. Do you belive in evolution? That is a non question question. Science bases itself on non belief. It basically says I belive nothing but what I can test and reproduce. Religion is belief because it can't be proven.
2007-05-25 14:42:06
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answer #5
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answered by Matthew 4
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Sure I wonder about the origin of life, but evolution and the origin of life are completely separate and unrelated issues. Evolution deals with the creation of new species from preexisting ones. The origin of life has no bearing on whether or not the theory of evolution is true.
2007-05-25 14:18:30
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answer #6
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answered by Anonymous
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Evolution is something to be believed in. You simply have to look at the evidence - peppered moth, antibiotic-resistant bacteria, etc. etc. - and make your own mind up.
I'm not sure of the second part, (gotten is a bit old-fashioned) but if you're talking about how life started at all, then it's another question entirely.
2007-05-25 15:03:43
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answer #7
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answered by Tom P 6
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The best opinion is offered by Richard Dawkins, in his book "The Ancestor's Tale". In it, he goes backward through evolution, right back to the beginning, where it obviously gets more conjectural. But he does offer different scientific theories. It makes interesting reading.
2007-05-25 18:06:21
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answer #8
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answered by Labsci 7
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That is what makes science interesting the factor of wonder. This is a good point in how did we began our realm of species and this is always a good topic the evolution theory.
2007-05-25 16:03:23
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answer #9
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answered by Anonymous
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Of course we wonder, that's why people dig up fossils, study DNA, study rock strata, and compare organs and body parts from differant animals, to find out.
The problem with any other theory is that no other theory can account for all the things evolution can account for without invoking a miracle.
2007-05-25 14:17:57
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answer #10
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answered by Chance20_m 5
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