Job 33:6
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- Jun 15, 2017
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3 things:
1) homologous proteins arent the same proteins. they are actually different.
2) we can also remove parts from a car (like a gps system) and the car will still be functional. but it doesnt mean that a gps system can evolve a step by step.
3) as far as i remember the ttss sysem has some parts that the flagelum doesnt has. so its not true that we can remove parts from the flagellum and get a ttss.
If I viewed you as a credible source, I would hear you out. But I'm afraid I dont.
The point is that structures of the flagellum, are homologous with independent structures that are in fact functional without needing to be part of a flagellum.
Much like how a feather can have a function and purpose without needing to be part of a wing. While all feathers are not identical (homologous structures are part of different systems which serve different purposes and have different parts), this doesn't change the response. And no you can't remove a cars engine and expect it to still run.
What this means is that individual parts of the flagellum may have evolved for purposes unrelated to a flagellum. Just as feathers may initially evolve for warmth rather than for flying as part of a wing.
If you have a logical argument against this, you're welcome to raise it.
If there was no feasible explanation for why feathers might exist (aside from being for flight), we might consider a wing irreducibly complex. But observing homologous feathers im non flying animals (like an ostrich) indicates that they could evolve for purposes other than for being part of a wing used for flight (flagellum), even if an ostriches feathers are not perfectly identical to eagle feathers which are used for flight.
The flagellum is reducible into independent homologous parts that are functional in varying systems.
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