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Author | Topic: "Best" evidence for evolution. | |||||||||||||||||||||||||||||||||||||||||||
JonF Member (Idle past 199 days) Posts: 6174 Joined: |
Can't disprove it, it's true.
But Faith doesn't know where her towel is.
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JonF Member (Idle past 199 days) Posts: 6174 Joined: |
Is the extra heart chamber functional?
Irrelevant.
How many more changes would be needed to make it functional
Nobody knows. What would be the interest in knowing whether it's 91 or 1,857 or 893 or ...
What's to guarantee they'd occur where they need to occur?
Nothing. The possibilities that could happen are many orders of magnitude larger than what does happen. You just can't understand the evolution has no goal. Edited by JonF, : No reason given.
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JonF Member (Idle past 199 days) Posts: 6174 Joined: |
the number of trials even to get a small functioning part would be impossible
Not when selection is operating.
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JonF Member (Idle past 199 days) Posts: 6174 Joined: |
As long as you speak in abstract generalizaions without evidence your opinion is meaningless.
Show your calculations of why it won't work.
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JonF Member (Idle past 199 days) Posts: 6174 Joined: |
You all think microevolution just keeps going but that is impossible. That is why I'm saying all you've got to get from species to species is trial and error. It's the only possibility. You can call it crap all you want. Obviously that makes yhou feel better but it doesn't change the fact that you can't get from one species to another any other way, and there's no way to predict that you're going to get any kind of useful mutations.. The genetic stuff is not built into the genome, that's only for the variations within the species. I'll come back to this again, can't get through it all now
As long as you speak in abstract generalizations your fantasies are meaningless.
Selection can't do anything, you have to have the stuff to select and that's where all you've got is trial and error.
Selection selects, that has an effect. Trial and error plus selection is staggeringly powerful.
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JonF Member (Idle past 199 days) Posts: 6174 Joined: |
Well, you make up a lot of what you write.
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JonF Member (Idle past 199 days) Posts: 6174 Joined: |
Selection.
But you have to hold on to your ignorance.
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JonF Member (Idle past 199 days) Posts: 6174 Joined:
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Conferring a benefit is not required. Not being too harmful is required.
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JonF Member (Idle past 199 days) Posts: 6174 Joined: |
You left out brand new genes in some offspring.
Caused by _________ (You fill in the blank)
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JonF Member (Idle past 199 days) Posts: 6174 Joined: |
{Double}
Edited by JonF, : No reason given.
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JonF Member (Idle past 199 days) Posts: 6174 Joined: |
And if a mutation results in a tiny phenotypical change with no effect on fitness, it can spread through the population..
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JonF Member (Idle past 199 days) Posts: 6174 Joined:
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Yep.
Then the cumulative effect of those tny changes is significance phenotypic change and maybe increased fitness.
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JonF Member (Idle past 199 days) Posts: 6174 Joined: |
Brown eyes aren't a good example. The mammalian ear would be.
One mutation produces a minor neutral phenotypic variation that spreads via neutral drift. Another mutation produces a further minor neutral phenotypic variation that spreads via neutral drift. Another mutation produces a further minor neutral phenotypic variation of the same part(s) that spreads via neutral drift. Another mutation produces a further minor neutral phenotypic variation of the same part(s) that spreads via neutral drift. Another mutation produces a further minor neutral phenotypic variation of the same part(s) that spreads via neutral drift. Wow, now the cumulative phenotypic variation is significant! and may affect fitness. Trillions upon trillions upon gazillions of trials. Millions of years.
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JonF Member (Idle past 199 days) Posts: 6174 Joined:
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I'm amazed at what snowflakes so many right-wingers are.
Make sure you clutch your pearls and collapse gracefully on your fainting couch.
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JonF Member (Idle past 199 days) Posts: 6174 Joined: |
it would always be mutating into something else
Not a problem, as long as the rate of change isn't enough to interfere with reproduction.
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