Occam's Aftershave
Posts: 5287
Joined: Feb. 2006
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| Quote (Occam's Aftershave @ Dec. 15 2019,10:14) | | Quote (Joe G @ Dec. 15 2019,08:14) | | Quote (Occam's Aftershave @ Dec. 14 2019,23:16) | | Quote (Joe G @ Dec. 14 2019,10:54) | | Actual evolution says that vision systems evolved from populations of sightless organisms. That cannot be moiled [sic]. |
Poor stupid ignorant Joke face plants again. 
| Quote | The 'division of labour' model of eye evolution
Arendt et al
Phil. Trans. R. Soc. B 2009 364, 31 August 2009
Abstract: The ‘division of labour’ model of eye evolution is elaborated here. We propose that the evolution of complex, multicellular animal eyes started from a single, multi-functional cell type that existed in metazoan ancestors. This ancient cell type had at least three functions: light detection via a photoreceptive organelle, light shading by means of pigment granules and steering through locomotor cilia. Located around the circumference of swimming ciliated zooplankton larvae, these ancient cells were able to mediate phototaxis in the absence of a nervous system. This precursor then diversified, by cell-type functional segregation, into sister cell types that specialized in different subfunctions, evolving into separate photoreceptor cells, shading pigment cells (SPCs) or ciliated locomotor cells. Photoreceptor sensory cells and ciliated locomotor cells remained interconnected by newly evolving axons, giving rise to an early axonal circuit. In some evolutionary lines, residual functions prevailed in the specialized cell types that mirror the ancient multi-functionality, for instance, SPCs expressing an opsin as well as possessing rhabdomer-like microvilli, vestigial cilia and an axon. Functional segregation of cell types in eye evolution also explains the emergence of more elaborate photosensory–motor axonal circuits, with interneurons relaying the visual information. |
Joke will now attempt to deflect by screaming "that doesn't explain the evolution of eukaryotes!" or "the title doesn't say blind and mindless!" 
Joke Gallien, dumbest person on the planet. |
Waaaaah! Waaaah! I made another dumbass claim and got refuted on it immediately! Waaaaah! |
LOL! Sure called that one didn't I? Of course predicting Joke Gallien will lie and dodge when caught in a mistake is the world's surest bet. |
Joke" There's no model of eye evolution"
OA "Here a published model of eye evolution"
Joke "THAT DOESN'T COUNT BECAUSE IT DOESN'T HAVE EVERY LAST MUTATION IN EVERY CELL LISTED!!!"
Joke Gallien: forever a willfully ignorant asshole.
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"CO2 can't re-emit any trapped heat unless all the molecules point the right way"
"All the evidence supports Creation baraminology"
"If it required a mind, planning and design, it isn't materialistic."
"Jews and Christians are Muslims."
- Joke "Sharon" Gallien, world's dumbest YEC.
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