I know that most of these questions are an attempt to disprove evolution and abiogenesis. I am an atheist and have no ulterior motive to disprove them. As such, I would appreciate a well thought out answer if you have one.
Anyways, how can we reduce a cell down into simpler parts that still function? The only parts that wouldn't be strictly necessary are reproductive parts, and parts for movement, at least, that is all I can think of.
Still, we would still need a semi-permeable membrane, DNA (coded exactly right), something to digest nutrients, something used for cellular respiration. Also, it probably WOULD need reproductive parts, because otherwise, it would need to survive for millions if not billions, of years by itself (until it acquired such parts), not to mention on an earth that is infested with lava and constant meteor strikes.
Anyways, how can we reduce a cell down into simpler parts that still function? The only parts that wouldn't be strictly necessary are reproductive parts, and parts for movement, at least, that is all I can think of.
Still, we would still need a semi-permeable membrane, DNA (coded exactly right), something to digest nutrients, something used for cellular respiration. Also, it probably WOULD need reproductive parts, because otherwise, it would need to survive for millions if not billions, of years by itself (until it acquired such parts), not to mention on an earth that is infested with lava and constant meteor strikes.
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We cannot reduce a cell into smaller functional parts. Viruses are simpler, but they cannot function without host cells. Nevertheless, many of the organelles inside a cell were probably of symbiotic origin. It means chloroplasts, mitochondria and other similar organelles were probably, even almost certainly, once independent living organisms. That means cells were simpler a long time ago than they are today. Of course the simplest living cells are bacteria, but bacteria were probably even simpler long ago. As time goes by and the ecosystems became more complex, even bacteria had to evolve to cope.
Scientists have experimented with how life began and how different organic chemicals could have been synthesized naturally under the conditions of a primitive earth. It all started with the successful synthesis of the urea molecule in the 1950's, but more and more organic chemicals were soon synthesized, including proteinoid microspheres. These microspheres are not living organisms but they did show some of the properties of life. It is possible that life started similarly and natural selection resulted in more complex structures than the proteinoids.
Scientists have experimented with how life began and how different organic chemicals could have been synthesized naturally under the conditions of a primitive earth. It all started with the successful synthesis of the urea molecule in the 1950's, but more and more organic chemicals were soon synthesized, including proteinoid microspheres. These microspheres are not living organisms but they did show some of the properties of life. It is possible that life started similarly and natural selection resulted in more complex structures than the proteinoids.
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