Quote:How and why did Single-celled animals evolve (very complex creatures)?
They are complex creatures NOW but they have been evolving for just as long as we have. In fact because of their generally more rapid lifecycle they have gone through more generations.
Quote:How did it all start -the very beginning?
There are quite a few theories about this, unfortunately the first living thing was probably eaten by the second so the best we can do is work out what is most likely, at the moment that looks like abiogenesis.
Quote:Natural selection results in changes to different species. If the first single cell organism were reproduceds somehow (please explain to me why the possibility for reproduction need to have been present), why would it change to something else? Why would the need exist? I would like some light on the subject as you seem quite convinced of your position.
Reproduction probably started as cells splitting apart when they werent much more than loose bundles of amino acids.
It wasnt until quite a long time into the history of life that sexual evolution started to play a role.
You can fix ignorance, you can't fix stupid.
Tinkety Tonk and down with the Nazis.