(August 29, 2015 at 12:49 pm)Redbeard The Pink Wrote:So why do believe in this? The day before yesterday you said that they are about 100 years out to making abiogenesis work but that means that they have not. Yesterday you say that it isn't happening now so it would seem to me that there is no scientific evidence that abiogenesis actually happens. Am I wrong?(August 29, 2015 at 10:33 am)Rekeisha Wrote: Why don't we see abiogenesis today? We see life coming from living things everyday so why not life coming from non-life?
Why do some organisms become more complex? Are there signs even now of life becoming more complex? Why don't other organisms become more complex?
There's a lot of speculation about why abiogenesis doesn't seem to occur on Earth any more, and the most common proposed reasons are that the conditions necessary for it to happen no longer exist here, and that the things life needs to get started would be eaten on a planet that is already over-run with life, so even if proteins and/or other new organics did start to form, established life forms would eat them before they could evolve into anything.
I don't really know why different organisms evolve at different rates, but I imagine it has a lot to do with environmental demands. Yes, there are signs that all life forms are continuing to evolve. Every time new life is made, it is slightly genetically different from whatever made it in the vast majority of cases, and that's all evolution needs to keep rolling: tiny changes accumulated over large periods of time.
So we see Micro evolution but what about Macro evolution. Where are we see this happen? Where do we see genetic information being added to organisms?
evolution
