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Author Topic:   Are there evolutionary reasons for reproduction?
DC85
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Posts: 876
From: Richmond, Virginia USA
Joined: 05-06-2003


Message 23 of 136 (554507)
04-08-2010 4:49 PM
Reply to: Message 19 by MrQ
04-08-2010 2:34 PM


means more energy consumption therefore, some organism develop the habit of living longer instead of reproducing more to extend their species life span. So I am not so sure about the last bit of the diagram. Do species live longer to better reproduce or save energy?
I imagine the result would be the same and that's survival. You're trying to attach too much reason to it when it simply comes down to survival.
An organism that lives a long time may produce less offspring but has a chance to reproduce again and if one of those offspring's offspring reproduce we have a success story. Species like this normally would have better "reason" to adapt better to the environment. In this case mutations that extend the life of the organism might be selected.
On the other hand mayflies only live for a day almost all energy goes into reproducing. This species would produce MANY offspring. mutations that produce more offspring would be selected over ones that don't.
Both systems work. When looking at life and survival it might be better to think of it more like "Whatever works." I don't think there has to be a reason beyond that
Edited by DC85, : No reason given.

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 Message 19 by MrQ, posted 04-08-2010 2:34 PM MrQ has replied

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DC85
Member
Posts: 876
From: Richmond, Virginia USA
Joined: 05-06-2003


Message 27 of 136 (554545)
04-08-2010 8:53 PM
Reply to: Message 24 by MrQ
04-08-2010 5:31 PM


You're getting closer... All that matters is that the organism lives to reproduce.
That isn't the purpose and there is no purpose for it other then the fact that it worked. Confused?
Stop thinking about purpose and try to look at it like "it's good enough".
It makes more sense that way I promise

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DC85
Member
Posts: 876
From: Richmond, Virginia USA
Joined: 05-06-2003


Message 50 of 136 (554909)
04-10-2010 8:14 PM
Reply to: Message 47 by MrQ
04-10-2010 1:21 PM


True! but to achieve what?! What is the target?
Why would natural processes have a target or a purpose? Why can't people understand that outside of what humans build or create nothing in the natural world has a target or goal?
If an asteroid impacts earth was that it's goal or target?
If a star goes Nova was that it's goal or target?
There are reasons these things happen but they certainly don't have this goal....
Imperfect organisms reproduce and produce more imperfect organisms who also reproduce. The populations of imperfect organisms evolve because they were imperfectly replicated. What more do you need?
Edited by DC85, : No reason given.

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DC85
Member
Posts: 876
From: Richmond, Virginia USA
Joined: 05-06-2003


Message 52 of 136 (554943)
04-10-2010 10:52 PM
Reply to: Message 51 by bluescat48
04-10-2010 10:45 PM


Re: Why?
Why is it that people seam to demand that everything does things with a particular purpose? I have never been able to understand this.
I think it goes back to the fact in our world humans build and create things for a purpose and for some reason many have a hard time not applying that to natural processes. I think this is the reason many creationists also have a hard time understanding evolution. They want order and a goal attached to something that doesn't have one

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DC85
Member
Posts: 876
From: Richmond, Virginia USA
Joined: 05-06-2003


Message 56 of 136 (554978)
04-11-2010 8:25 AM
Reply to: Message 54 by MrQ
04-11-2010 5:20 AM


If we can calculate everything of a star just by having two or three basic parameters, then I don't see why we can't calculate the mechanics of evolution like that.
you're looking for a way to predict evolution? If we take samples of the population perhaps we could predict which genetics will be selected.
It happens because imperfect things replicate imperfectly. If we ever had an organism that perfectly replicated itself it would not be selected. Without mutations it would not evolve .
Things reproduce + Mutations + time = Evolution
But everything in universe has reason behind it. The reason for asteroid hitting the earth is gravity
So the target of the asteroid is Gravity?

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DC85
Member
Posts: 876
From: Richmond, Virginia USA
Joined: 05-06-2003


Message 116 of 136 (575764)
08-21-2010 1:30 AM
Reply to: Message 112 by dennis780
08-20-2010 10:40 PM


Can't happen ever
Yes because it's 100% impossible for a species that has more genetic diversity and more populations then other related species to have other eye colors

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DC85
Member
Posts: 876
From: Richmond, Virginia USA
Joined: 05-06-2003


Message 129 of 136 (581879)
09-17-2010 10:12 PM
Reply to: Message 123 by barbara
09-08-2010 4:04 PM


Re: Look Ma, no enzymes!
Oxygen being so toxic for early life should have stop the ones producing it.
It was... It's thought many early life forms went extinct after large amounts of Oxygen became a large part of the atmoshere. It only takes a few survivors.

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