Where does the theory of evolution start? as fish? ooze? single cell organisms?what is the start???

Question

what id the single cell organisms evolve from?

so Amino Acids is the start not sinlge cells?

Answer 1

In the physical sciences, abiogenesis, the question of the origin of life, is the study of how life on Earth might have evolved from non-life sometime between 3.9 and 3.5 billion years ago.

There are a couple of models but by no means a certain answer. Like in your last question, this is again no good reason to turn around and say 'christian sky daddy did it'. Might as well say 'Zeus did it'. Like someone else commented, a God of the Gaps that lives in the margins of science will steadily lose ground until he *poofs* into nothing.

Feel free to start out from Wikipedia's origin of life page:
http://en.wikipedia.org/wiki/Origin_of_life

or do yourself a favour and go read Richard Dawkins' 'the Blind Watchmaker'.

Since you insist on some kind of 'definite' answer, here is a rough sketch built on a number of discoveries about the origin of molecular and cellular components for life, which are listed in a rough order of postulated emergence:

1. Plausible pre-biotic conditions result in the creation of certain basic small molecules (monomers) of life, such as amino acids. This was demonstrated in the Miller-Urey experiment by Stanley L. Miller and Harold C. Urey in 1953.
2. Phospholipids (of an appropriate length) can spontaneously form lipid bilayers, a basic component of the cell membrane.
3. The polymerization of nucleotides into random RNA molecules might have resulted in self-replicating ribozymes (RNA world hypothesis).
4. Selection pressures for catalytic efficiency and diversity result in ribozymes which catalyse peptidyl transfer (hence formation of small proteins), since oligopeptides complex with RNA to form better catalysts. Thus the first ribosome is born, and protein synthesis becomes more prevalent.
5. Proteins outcompete ribozymes in catalytic ability, and therefore become the dominant biopolymer. Nucleic acids are restricted to predominantly genomic use.

Answer 2

I think you asked a good question. The reason why people responded so defensively/ rudely is because they don't know the answer. We, on a very small scale we are changing, but we did not develop from various animals or anything like that. That theory is quite ridiculous. I have also wondered if this theory was true why we would not have animals in their half-baked stages now. (In the process of changing from one animal to another.) And if the fish changed to reptiles and so on, why do we still have fish? These theories are interesting, but they are not proven, so the only reason why the responses might be defensive is because it gives Atheism an umbrella. In the bible it says that God made man in his own image. It does not say how, but the animals created were made separately. I agree, how can you deny there is a God when you see the complexity and beauty of his creations? We did not just happen, there is an amazing design to our bodies where even if the smallest thing is off it creates great problems. Such complexity and intricate design is a witness that there is a God.

Answer 3

Amino acids is the start of the evolution. Without them single cell organisms cant exist.

Answer 4

If you take it as far as it can go, it starts with random atoms flying around, some stuck together making molecules, some molecules (when accidentally falling into certain combinations) tended to generate chaim reactions that reproduced the same molecules at the end, thus perpetuating the chain. Arguably, this is where life begins -- molecular chainreactions that keep producing themselves over and over. From there, you can go to single-cell organisms and on up.

On the other hand, some evolutionists say that life 'just happened' or God started it, and then evolutionary forces took over.

Answer 5

The first life was single celled organisms. That is when evolution started. Evolution does not apply to anything non-living.

Answer 6

Evolutionary Theory begins with the "unit organism" or the first organism that came into being.

Asking how this organism came into being will only invite the use of Abiogenetic hypotheses and a departure from Evolution.

Evolution = Origin of Biodiversity

Answer 7

Self-replicating DNA molecules. If you want to be meticulous, you could probably go back to amino acids.

Fish can't be the "start" of evolution.
I don't know what the hell "ooze" is.
Unicellular organisms, technically, yes...kind of.

Answer 8

Evolution is what occurs after abiogenesis. It's simply a process of the change in allele frequency in a population - ANY population... including the earliest ones.

Answer 9

When the base amino acids fused to form RNA. That was when you were born.

Chemistry is pretty simple. For it to turn into life is pretty remarkable. But it happened all the same.

Answer 10

Where does the theory of creationism start? Was God just sitting on a cloud, bored, and figured he'd make an earth? What came before that?