Which was designed again/

Inmate
Inmate

Which was designed again/

All urls found in this thread:
https://defensedefumer.wordpress.com/2010/07/17/that-cant-be-true-hasnt-the-bacterial-flagellum-shown-to-be-irreducible-complex/
https://warosu.org/sci/thread/S9427466
Flameblow
Flameblow

one was designed by man, the other designed by a loving God.

TalkBomber
TalkBomber

@Inmate
your existence is probably the best argument that nothing intelligent designed humans.

BlogWobbles
BlogWobbles

@Inmate
Not again ffs.
We had this ''disscusion'' already.

Supergrass
Supergrass

@Inmate
They don't even look similar

Fried_Sushi
Fried_Sushi

@TalkBomber
/Thread

Gigastrength
Gigastrength

@Inmate
Are arrowheads invented or discovered?

Carnalpleasure
Carnalpleasure

@Gigastrength
they were designed

Fried_Sushi
Fried_Sushi

@Inmate
The one on the right isn't very energetically favorable to have occurred without some kind of intelligent design- although it's not like we can totally discount the possibility. Thus, other context clues, such as the contextual age of the sediment it's found in can be used to create a probabilistic determination that leads us to believe it was designed.

On the far left- it's a drawing so of course it was designed. Jokes aside, in the molecular environment you often see things that are as perfectly "geometric" as you can get, whether that be an exact spiral, sphere, circle, etc- and so piston-like structures like the one imaged aren't too difficult to think it could arise. After all, evolution has been occurring for billions of years, and matters of optimization (a mutation that essentially increases efficiency- like, let's say making a structure more circular by a protein change increasing electronegativity in a counter-balance region to a part that was jutting out slightly) are always selected for over their wildtype counterparts.

https://defensedefumer.wordpress.com/2010/07/17/that-cant-be-true-hasnt-the-bacterial-flagellum-shown-to-be-irreducible-complex/

This blog actually goes over the exact structure you seem to have doubts about, and explains some potential precursor structures.

Biology is such a complex and wonderful field- especially on the molecular or chemical basis- because you come to understand how amazingly complex systems arise from nothing more than the physical principles of reality.

Nude_Bikergirl
Nude_Bikergirl

@Fried_Sushi
Yeah but what good is 9/10 of a flagellar motor? You have to have something to select for, each step has to at least slightly increase survival

Booteefool
Booteefool

@Nude_Bikergirl
That's a really good question, and it leads to one of the busiest areas of research. There are certain issues of biogenesis that are more 'basal' than others, in trying to figure out how they arose. This situation, however, could be a little more simple.

There are proteins in the cell membrane that act sort of like pumps for import an export of nutrients and food. Now, imagine if one of the genes for the pumps got duplicated- a semi-common genetic error that occurs. Then, one of the copies of the pumps gains some kind of mutation, like some coding segment for a protein gets inserted in the gene for the second copy- thus, addng some strange protein structure or tail that flops when the pump is 'activated'.

If the cell already had some system for utilizing its pump if it ran into food particulates- which is fairly common- then the second copy of the pump would also work on that principle, likely. At this point, selection would occur- the pump action may cause the protein segment to spin, pushing it along faster, and causing some differential success rate at getting to food, causing the optimization to start.

Often times completely differently purposed structures are adapted for new purposes by chance. Feathers, for example, are great for flight- but the first evidence for feathers is on flightless creatures, indicating their primary purpose was not flight but probably warmth or something. Then, they were adapted for flight- it's shit like this which makes molecular evolution really fun to learn about.

cum2soon
cum2soon

@Inmate
Evolution designed the first one too.

askme
askme

@Inmate
The one on the right, the left looks like a product of evolution

TalkBomber
TalkBomber

@TalkBomber
Someone call 911 and get OP an ambulance because he just got third degree burns over 80% of his body

TurtleCat
TurtleCat

@Inmate
The cells seem more complex because it's easier to make seemingly symmetrical forms at a small scale since it actually requires less information to encode in DNA and to construct. Stop being retarded

LuckyDusty
LuckyDusty

@Nude_Bikergirl
As a bacterial injector instead of a motor.

RumChicken
RumChicken

Don't forget to report OP

https://warosu.org/sci/thread/S9427466

CouchChiller
CouchChiller

@Nude_Bikergirl
how can part of an organ be useful

Dreamworx
Dreamworx

@Nude_Bikergirl
The previous step of a flagellar motor isn't 9/10 of a flagellar motor, it's a smaller, shittier flagellar motor

Spamalot
Spamalot

@Flameblow
kek, i love religion larpers

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