befor we get started i am sorry for my bad spelling and gramer. many people beleave that life on earth came from meteors from millions of light years away hiting erath and bring the one cell organsium "Building block of life" and then over a great amount of time evolving in to what it is now ok i can buy this and even under stand it...but where the hell did that first one celled organisum come from they dont just appear so how did it all start? some were some how their was something else somthing that not even they wildist young mind can even think of. ok i lost focus on what i was doing so any way were do u think that first one came form? what kinda wild and crazy theories do you have to throw at me?
2007-01-13 08:24:59 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
look at this:
http://mediatheek.thinkquest.nl/~ll125/en/life-2.htm
2007-01-13 08:31:07 · answer #1 · answered by Anonymous · 2⤊ 0⤋
We are not sure if that is what happened or not, that is one hypothesis. We have detected amino acids in space, I don't know whether they came to earth in the past or if the came FROM earth in the past. But that is a sign that there could have been such buliding blocks in space.
As for where they came from, perhaps another planet perhaps from our own. But where was the real beginning if from another planet? The "chemistry lab" of a planet with about 2 bilion years of lava, radiation, liquids, lightning, etc... can do things that we just aren't sure of yet. It is easily within probability that this could have created some amino acids, which combined into higher forms which eventually became single celled organisms.
Not knowing exactly how the process worked is why scientists and doctors worked for thousands of years to finally discover bacteria. We only firmed up the age of the earth and evolution about 100-150 years ago. Give us some time to work on it.. or even help us out!!
2007-01-13 16:27:37 · answer #2 · answered by Anonymous · 1⤊ 0⤋
That theory is one scientists have thought about--it would help explain how life got started on Earth. But you put you're finger on the problem with the theory--GOOD QUESTION!
The general idea, though, is that the start of life might be a very rare event. If that's the case, life could (theoritically, anyway) have reached Earth and other planets, carried by meteors that started as rocks thrown into space from a ansterroid impact on a world that did have life. The theory isn't getting a lot of attention recently--because more recent work makes it likely that the chances of life developing, given the right conditions, are a lot better than we thought.
2007-01-13 18:47:25 · answer #3 · answered by Anonymous · 0⤊ 1⤋
There are several theories about how life made it's start on Earth. The meteor theory is one.
What has been proven is that it is possible to form organic compounds, such as amino acids, from molocules present in the early oceans by using electricity (lightning). It is important to remember that these experiments formed Organic Compounds, which is not the same as life, but they are key ingredients in the equasion of life.
2007-01-13 17:50:56 · answer #4 · answered by socialdeevolution 4 · 2⤊ 0⤋
I don't believe in it but i remember how my biology teacher used to say bla bla..
4.6 billions years ago The earth's atmosphere did not contain oxygen, That provided favorable environment for the natural synthesis of the first organic compounds
The first phospholipid bilayer membranes formed along with primitive RNA and DNA genetic molecules. The membranes adsorbed proteins and the hereditary DNA/RNA material. From these organic molecules,the first simple single cell organism or primitive prokaryote arose with a lack of nucleus.
After all it just the best guess that scientist came up with
2007-01-13 17:18:14 · answer #5 · answered by Anonymous · 1⤊ 1⤋
You are in error the theory is that comets brought the 1st primitive amino acids that when combined can make the 1st proteins and from there you go up the evolutionary scale.
2007-01-13 19:20:57 · answer #6 · answered by brian L 6 · 1⤊ 0⤋
What you're talking about isn't evolution - it's abiogenesis. They are not related. Evolution is what happens AFTER you have life.
Also, there is a spell check button when you compose your post. It is your friend. If you can't spell, at least try to make it easier on the people reading your post.
2007-01-13 17:31:03 · answer #7 · answered by eri 7 · 1⤊ 0⤋
This is the intrinsic problem with "panspermia". It does not address the origin of life, but only life on Earth. It simply sidesteps the ultimate question.
2007-01-13 20:33:36 · answer #8 · answered by novangelis 7 · 0⤊ 1⤋
There are many theories... and because they are theories you can't know those facts.
I think you should re-make the question.
2007-01-13 16:30:56 · answer #9 · answered by b4contact 3 · 0⤊ 2⤋