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Author Topic:   How is Natural selection a mechanism?
Pressie
Member (Idle past 9 days)
Posts: 2087
From: Pretoria, SA
Joined: 06-18-2010


Message 81 of 191 (815764)
07-24-2017 8:20 AM
Reply to: Message 80 by AndrewPD
07-23-2017 2:18 PM


Re: How would you design an experiment/test?
AndrewPD writes:

It all depends on your definition of consciousness. I personally differentiate between consciousnesss and the contents of consciousness....

Ah, a great word salad to follow.

This message is a reply to:
 Message 80 by AndrewPD, posted 07-23-2017 2:18 PM AndrewPD has not yet responded

  
Pressie
Member (Idle past 9 days)
Posts: 2087
From: Pretoria, SA
Joined: 06-18-2010


(1)
Message 158 of 191 (816407)
08-04-2017 4:32 AM
Reply to: Message 155 by AndrewPD
08-03-2017 9:27 PM


AndrewPD writes:

A Refrigerator is intelligently designed...

By naturally occurring phenomena. Humans. Not by Spooks.

Edited by Pressie, : No reason given.

Edited by Pressie, : No reason given.


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Pressie
Member (Idle past 9 days)
Posts: 2087
From: Pretoria, SA
Joined: 06-18-2010


(6)
Message 159 of 191 (816408)
08-04-2017 4:43 AM
Reply to: Message 157 by Riggamortis
08-03-2017 11:00 PM


Re: 2nd Law
A Creationist discovers the sun...Almost

https://cafewitteveen.wordpress.com/...covers-the-sun-almost

quote:
“Evolution says that we started out simple, and over time became more complex. That just isn’t possible: Unless there is a giant outside source of energy supplying the Earth with huge amounts of energy. If there were such a source, scientists would certainly know about it.”

Edited by Pressie, : No reason given.


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Pressie
Member (Idle past 9 days)
Posts: 2087
From: Pretoria, SA
Joined: 06-18-2010


Message 175 of 191 (816611)
08-08-2017 5:01 AM
Reply to: Message 173 by AndrewPD
08-05-2017 2:45 PM


Thanks AndrewPD. I think I will buy The Selfish Gene this weekend. I think it would be an interesting read. Have you read it?

I've bought and read The God Delusion and The Greatest Show on Earth, written by that author, before. Excellent books.

Climbing Mount Improbable will just have to wait!

Edited by Pressie, : No reason given.


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Pressie
Member (Idle past 9 days)
Posts: 2087
From: Pretoria, SA
Joined: 06-18-2010


Message 178 of 191 (816620)
08-08-2017 8:43 AM
Reply to: Message 176 by CRR
08-08-2017 7:09 AM


Re: the original topic issue was ... ?
Even though gay people can have children natural selection should work so long as on average they have less children than straights.
Nope. Do you have any idea what natural selection is?

This message is a reply to:
 Message 176 by CRR, posted 08-08-2017 7:09 AM CRR has responded

Replies to this message:
 Message 185 by CRR, posted 08-09-2017 3:30 AM Pressie has responded

  
Pressie
Member (Idle past 9 days)
Posts: 2087
From: Pretoria, SA
Joined: 06-18-2010


Message 188 of 191 (816770)
08-11-2017 5:25 AM
Reply to: Message 185 by CRR
08-09-2017 3:30 AM


Re: the original topic issue was ... ?
CRR writes:

Natural selection happens when there is differential reproductive success over multiple generations. Those that have more offspring are favoured and those with less are disfavoured...

Nearly accurate, but not quite. One thing you forgot to mention is the environment.

You forgot about those organisms who don't have a lot of offspring; yet their genes spread amongst the population in the environment which they live in.

Any good summary of natural selection will include mentioning the environment...

Edited by Pressie, : No reason given.

Edited by Pressie, : No reason given.


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Pressie
Member (Idle past 9 days)
Posts: 2087
From: Pretoria, SA
Joined: 06-18-2010


Message 189 of 191 (816771)
08-11-2017 5:38 AM
Reply to: Message 187 by Taq
08-09-2017 10:56 AM


Re: Natural selection & homosexuality
Taq writes:

I don't think there are specific mutations that are directly linked to homosexuality, but there rarely are for complex characteristics or behaviors.I would view sexuality as more of a spectrum and the result of many, many genes interacting, along with social interaction.

Exactly. It's a combination of genetics, the chemicals experienced in the womb, the environment people are raised in, etc.

Let's start with genetics. Some people are born with both male and female genitalia.

No choice involved.

Edited by Pressie, : No reason given.


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